Science & Technology

How a Fish Proved a Mathematical Breakthrough

Anna Tolette — Mon, 07 Jul 2025 20:06:33 +0000

How a Fish Proved a Mathematical Breakthrough Anna Tolette Mon, 07/07/2025 - 14:06

Alison Van Houton

On a March day in 2023, Ben Alessio, then a research assistant at CU Boulder, was wandering around the Birch Aquarium in La Jolla, California, when he clocked a surprising sight: a male ornate boxfish undulating in the water, tessellating with violet and tangerine hexagons. It was dazzling — but more importantly, it was vindicating.

The rare fish’s markings were a real-life example of something that he and Ankur Gupta, CU Boulder assistant professor of chemical and biological engineering, had previously only modelled mathematically. It confirmed that they were onto a scientific breakthrough.

Turing Patterns

To understand Gupta’s research, one must first understand morphogenesis. Morphogenesis is the process by which cells, tissues and organisms develop their shapes.

Nearly 75 years ago, the famed British mathematician Alan Turing published a paper titled “The Chemical Basis of Morphogenesis.” Since then, Turing’s work has been key to our understanding of how many — but not all — patterns form in nature.

“That’s sort of the foundational thinking, mathematically speaking, for this area of work,” said Gupta.

Turing had an uncommonly innovative mind — his ability to think beyond the status quo and make connections between various fields of thought led to breakthroughs in electronic computing, artificial intelligence, code breaking in WWII and, in this case, mathematical biology.

When it came to morphogenesis, Turing was interested in how heterogeneity, or diversity, arises out of homogeneity, which is when something is composed of all one type of thing. In other words, why does a zebra have both black and white stripes instead of a coat with hairs that are all one solid color, like gray?

The reason is diffusion — which is central to Turing’s theory. Diffusion is the movement of molecules from areas of higher concentration to areas of lower concentration; molecules tend to spread out until there’s an even distribution (much like people in an elevator). In chemistry, diffusion often dominates systems, especially when particles are tiny.

“Diffusion essentially promotes homogeneity,” said Gupta.

What he means is that if you drop blue dye into clear, still water, for example, it will slowly diffuse, in a gradient, until the whole container is equally blue. Similarly, when mixing red and blue dye in a diffusion-dominated system, one expects the colors to blend, ultimately yielding a homogenous purple hue. However, when a chemical reaction also occurs, something different may happen. In certain conditions, even a diffusion-dominated system can promote heterogeneity from homogeneity.

“Essentially, what [Turing] argued was that under the right conditions, if there is diffusion as well as [a chemical] reaction between different components — if I have five or six dyes, or three or four dyes, and they’re reacting with each other — then essentially it’s just a delicate dance between these two processes.”

These days, the term “Turing pattern” is generally applied to any reaction-diffusion pattern. This natural pattern forms when chemicals react with one another and spread out, often resulting in wavy lines or spots. A notable example of a Turing pattern in nature is the sparkling blue zebra fish, a slender creature that’s gilded with horizontal, blurry-edged golden stripes.

However, some wild animals feature very crisp markings.

“Why would a diffusion model describe something that is so striking and sharp?” Gupta wondered.

An Accidental 91��Ƭ��AVy

Gupta didn’t initially set out to answer that question. His focus was on diffusiophoresis, which is the combination of diffusion, described earlier, and phoresis, which describes how ultra-small dissolved particles — around a tenth or even a hundredth the width of a single human hair — can sometimes drag other things along with them in a solution. So, if diffusion is the way that blue dye spreads through clear water, phoresis is the movement of particles that happens because they’re temporarily dragged by that dye.

Alessio, who was doing computational research at the time, had been running mathematical simulations of reaction-diffusion systems that also had a diffusiophoretic element. The resulting visuals were notably defined, unlike the fuzzier ones that emerge from reaction-diffusion models (as seen in the zebrafish). And it was the striking violet and tangerine hexagon boxfish pattern that caught his attention in the Southern California aquarium.

“I was just literally simulating something like this on my computer,” thought Alessio when he saw it. He snapped a slew of photos and messaged Gupta excitedly. “I have something exciting to show you.”

Until that point, Gupta and Alessio had the models, but they didn’t have an example of them in nature.

“I didn’t have any sort of idea about this fish or anything like that,” said Gupta. “He showed me this, and then we sort of reverse-engineered the missing link.”

They dove into existing research and realized that chromatophores — cells that create pigment in the bodies of fish, reptiles and some other animals — can be carried by dissolved chemicals. In other words, they can move diffusiophoretically (like the particles temporarily dragged by dye).

In late 2023, Gupta and Alessio published a paper titled “Diffusiophoresis-Enhanced Turing Patterns” in the peer-reviewed journal Science Advances. Their research advances Turing’s theory by describing how more precise patterns — like the one seen on the ornate boxfish — come to exist.

While Alessio is now working on a PhD in mechanical engineering at Stanford, Gupta intends to continue researching how diffusiophoresis factors into Turing patterns.

“On the pattern-formation side, it would be useful to see if we can replicate some of this synthetically,” he said.

It’s a tall order, but more investigation can potentially help us understand how to control things synthetically.

Gupta is now investigating this phenomenon at an individual-cell level, which he likens to studying a single human versus a population of people.

“If I’m thinking about a population, then one option is to track individual people, and one is to say, ‘What is the population density?’” he said. “It was the population density approach that we were taking in our first paper. But now, we’re examining individual cells, and that has been interesting, because now what we start to see is imperfect Turing patterns.”

While mathematical models tend to be perfect, in reality, you often see imperfections: deformed hexagons or hexagons sliced in half. Taking an individual-cell-level approach to diffusiophoretic Turing patterns could provide more insight into why patterns sometimes don’t appear as expected based on mathematical models.

“We think it’s exciting, because real systems actually are not perfect,” Gupta said.

A Pilgrimage

In October 2023, before the “Diffusiophoresis-enhanced Turing patterns” paper was published, Gupta’s wife was traveling to a conference in San Diego. With anticipation, he packed his bags, hoping to set eyes on the ornate boxfish that inspired their discovery.

Inside the Birch Aquarium, he did a lap around the right side, where most of the fish seemed to be. But he wasn’t sure exactly where to look, and he struggled to spot its telltale scales.

“I couldn’t see it,” he said. “It was hidden.”

Ten minutes passed, then 20. Increasingly worried, he considered enlisting a staff member to help him track it down. Finally, in a last-ditch effort, he ventured off in the direction of the children’s area, toward the other side of the building. There, at long last, he caught his glimpse of the elusive fish.

Eureka.

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Illustration by Petra Péterffy

CU Boulder's Ankur Gupta’s discovery of sharper, more precise natural patterns expands on Alan Turing’s mathematical theory.

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Five CU Innovators Changing the World

Anna Tolette — Mon, 07 Jul 2025 20:04:07 +0000

Five CU Innovators Changing the World Anna Tolette Mon, 07/07/2025 - 14:04

CU Boulder is teeming with innovation, curiosity and thought leadership. And the people who comprise the university — CU Buffs — make global impact.

We’re highlighting five stellar Buffs — CU Boulder students, alumni and faculty whose work is relevant, leading-edge and promises to create ripples out into the world. Their stories were written by five equally outstanding CU affiliates, who personally know and understand the importance of their work.

As journalist Tom Costello (Jour’87) wrote in his essay on his NBC colleague Savannah Sellers (Jour’13), she “breaks through.”

Many Buffs are breaking through — they bridge traditional silos, strive to think differently, and take huge risks. And just as many credit the university for equipping them to pursue their passions. CU Boulder is more than its stunning location — this university is the people who push for more.

Idowu Odeyemi (PhDPhil’27)

Charting New Paths as a Rising Philosopher

Idowu Odeyemi came to CU Boulder to refine his philosophical acumen while carving a path for young Africans like him who aspire to study philosophy.

Beyond his research, he said, “I want to challenge and expand the traditional boundaries of the discipline so that the philosophical community must either engage with African thinkers or justify why not.”

Idowu’s work — centered on oppression and blame — delves into how oppressive systems like patriarchy, colonialism, Nazism and slavery affect moral agency. He invites us to consider haunting questions such as why a battered wife doesn’t simply leave while her husband is out, illustrating how the threat of severe harm to one’s welfare can override considerations of morality and compel individuals to remain in oppres-sive circumstances.

Consider a battered wife who faces an oppressive double bind: resisting her abuser risks her safety, while compliance perpetuates the very system that oppresses her. This leads to an untenable situation where she is damned if she revolts, and damned if she doesn’t. In Idowu’s view, this dilemma complicates blaming oppressed individuals for not revolting.

Another facet of Idowu’s scholarship introduces the term “epistemic disgust” — a neglected psychological response that prompts us to reject certain beliefs and utterances because they repulse us. If someone says, “All white men smell like hot dog water,” for instance, many listeners feel revulsion that blocks such an utterance from entering our belief system. Idowu’s ground-breaking theory on how disgust can shape belief formation was published in the prestigious journal Episteme.

He also ventures beyond academia: His essay “On Accent and Confidence” in Isele Magazine was nominated for the 2025 non-fiction prize and recognized as one of the 50 notable essays from Africa in 2024, and another piece, “Living in America, Leaving Nigeria” (published by The Republic), was named among the 18 notable essays by a Nigerian in 2023.

As a graduate student, Idowu has published four peer-reviewed papers in leading journals — an achievement typically expected of faculty. Recently, he delivered a philosophy colloquium at the University of Missouri — uncommon for a graduate student. He was a Harper PhD Fellow at the Benson Center, a fellow at the Center for African and African American Studies and, in 2023, a fully funded fellowship took him to the University of Oxford. This summer, he will be visiting the National Archives in London through a research award from CU Boulder’s Center for African and African American Studies.

Through Idowu’s compelling research and prolific achievements, he exemplifies how CU Boulder’s nurturing environment fosters tomorrow’s transformative thinkers.

CU Boulder philosophy associate professor Ajume Wingo serves as Odeyemi’s advisor. Ajume is a member of the royal family in the Nso kingdom, located in the northwest region of Cameroon. In addition to being widely published in political and social philosophy, he is the founder of several NGOs, including PridePads Africa and Pathfinders4peace.

Photo by Alastair Norcross

Savannah Sellers (Jour’13)

Serious, Fun, Whimsical — and Never Dull

As the face of “the Generation of Now,” Savannah Sellers co-anchors the streaming morning newscast of NBC News NOW, then reports for The Today Show and NBC Nightly News. She demonstrates how a journalist can break through a saturated news market and reach a new generation of consumers who crave accurate information on their own terms.

While transitioning from CU Boulder to NBC News in New York could have been daunting, Savannah quickly established herself as smart and determined, yet easy-going and relevant. This rare combination made her a natural choice to help lead NBC’s outreach to younger viewers, where they are — on social media.

She helped map a new look and pacing for NBC News. The target age: 20-to-40- somethings who want news on the go for their 24/7 lifestyle. Almost immediately, the audience was there. The newscasts moved fast. They were serious, fun, whimsical — and never dull.

Savannah took Snapchat viewers to Parkland, Florida, hours after a former student murdered 17 people at Marjory Stoneman Douglas High School. Her coverage was raw and real. A record 18 million people tuned in: mostly kids seeking information about a tragedy affecting other kids they didn’t know, but who were their age.

She has documented America’s heroin epidemic with an Emmy award-winning Nightly News series, revealing that the victims are not always stereotypical drug addicts — they could be your own neighbor or family member.

She has detailed and explained the confusing fight over banning TikTok, the app-of- choice for her younger audience, led honest discussions on diversity, equity and inclusion, and shared the deeply personal and painful struggle she and her husband have faced with fertility.

To meet Savannah is to discover a person of tremendous warmth, charm and insatiable curiosity who wants to know your story — what motivates you, and why. Those are the traits of a great broadcast journalist.

As one NBC exec put it, “She breaks through! She pops!”

It delights me to see a fellow CU alum become such a trusted voice and valued colleague at The Peacock. Go Buffs!

Tom Costello (Jour’87) is the senior correspondent at NBC News. With nearly 30 years of experience at CNBC and NBC News in London, New York and Washington, D.C., he reports daily across all NBC News platforms.

Photo by Nate Congleton

Dania Arayssi (MPolSci’22; PhD’26)

Vital Work in Transnational Politics

Dania Arayssi doesn’t just care deeply about the big social and economic problems that affect people’s everyday lives — she rigorously studies them and takes action.

Before coming to CU Boulder, she participated in the U.S.-Middle East Partnership Initiative (MEPI) at the U.S. State Department and earned multiple advanced degrees. She then founded the Gleam of Hope Group, which works with thousands of young people and women to address food and health needs. For many, these accomplishments would constitute an entire career. For Dania, this was just the beginning.

Dania brought her passion for understanding pressing socioeconomic and political issues to CU Boulder in 2021. Her dissertation work centers on remittances, money sent by those working abroad back to their families in their home countries. Remittances are an important source of income for families around the world. Dania’s research seeks to explain how these remittances affect people’s incentives to be politically active. Does the added economic security make people more likely to pressure the government for change? Or does economic security dampen any potential dissent, making people less likely to vote or protest? What issues do people who receive remittances care about the most?

Dania uses a rigorous combination of interviews, focus groups and original survey data to study these questions in her home country of Lebanon. Her work helps us understand how diaspora communities affect politics around the world. In an era of transnational politics, her work is vitally important.

Dania represents the best of CU Boulder. After completing her dissertation, she plans to work at the New Lines Institute for Strategy and Policy in Washington, D.C. During these politically contentious times plagued by myriad challenges, I personally find enormous hope that CU alumni like Dania will be out in the world contributing their expertise, knowledge and wisdom.

Sarah Wilson Sokhey works as an associate professor in CU Boulder’s Department of Political Science, a faculty associate at the Institute of Behavioral Science and the founding director of the Studio Lab for Undergrads in the College of Arts and Sciences. Her current research focuses on the local provision of public services in Ukraine during wartime. In 2024, she was inducted into the President’s Teaching Scholars Program, one of the highest CU teaching awards.

Photo courtesy Dania Arayssi

Jun Ye (PhDPhys'97)

Using Quantum for High-Tech Innovation

My friend and colleague Professor Jun Ye is an ever-flowing fountain of scientific and technological innovation.

One of the greatest laser scientists in the world, he and his students have built several generations of record-setting optical clocks. The technology has advanced to the point where Jun’s clocks would gain or lose less than a second in the whole age of the universe. These highly accurate clocks are tied into technology improvements to support better navigation, communication and the ability to sense unseen things (for example, small changes in gravity associated with objects buried underground). Additionally, his lab created the world’s first nuclear clock.

Through his research at JILA, Jun uses lasers to detect slight traces of unusual elements in gas samples. His group is now examining the air exhaled by people with various diseases to find tiny traces of certain chemicals associated with a particular disease. If this works, one day cancer testing might be as easy as puffing some air into a soda straw.

Much of his research is built around using the properties of quantum mechanics to do high-tech research — precision measurement, secure communication, exotic material design — that eludes the reach of “old-school” classical mechanics.

Perhaps as impactful as anything else he does, Jun has trained an entirely new generation of elite scientists and engineers, who are now the beating heart of Colorado’s, and the nation’s, high-tech industry. When I visit high-tech Colorado companies, it often seems that the technical leadership are CU Boulder alums who earned their degrees while working in Jun’s group.

On top of his research, Jun is working with me on a joint project to understand why there is more matter than antimatter in the universe. It sounds like a very abstract topic, but it is part of a bigger question: How are the conditions in the universe such that the development of humankind is possible? I feel very privileged to collaborate with Jun. I’ve learned a lot from working with him. Sometimes I wonder if the man ever sleeps!

Eric Cornell has been at CU for 34 years and wears many hats. He teaches first-year physics for the CU Boulder Department of Physics; he is a JILA fellow; and a scientist with the National Institute of Standards and Technology (NIST), part of the U.S. Department of Commerce. In 2001, he and CU Boulder professor Carl Wieman won the Nobel Prize in Physics for creating Bose-Einstein Condensation, the “world’s coldest stuff.”

Photo courtesy Jun Ye

Steve Swanson (EngrPhys’83)

Space Commander Gains and Gives Respect

Steve Swanson was one of the most highly respected members of the NASA astronaut office during the Shuttle and Space Station Programs in the 1990s and 2000s.

Steve and I met in the late 1980s when we were both in the aircraft operations division at Johnson Space Center. I was an instructor pilot in the space shuttle training aircraft. Steve was a software wizard and the flight simulation engineer responsible for managing the computer that enabled a Gulfstream II business jet to fly like a space shuttle. We were both interested in becoming astronauts. I was selected in 1992, and

Steve was named an astronaut in 1998 after obtaining a PhD in computer science from Texas A&M University.

Steve excelled right away in the astronaut office and was selected as one of the four extra-vehicular activity (EVA) crewmembers to install one of the four solar array elements of the station. It was considered an honor to be chosen for such a significant mission on his first flight — he was clearly a rising star!

I began working at CU Boulder thanks to Steve. He talked to me after his post-flight trip to Boulder to visit with the students and return items he had flown for the university. CU asked him to consider a professor position in the CU aerospace department, but he wanted to fly more for NASA and so asked if I might be interested instead.

Steve also led the EVA team to install the final solar array element two years later. His final mission in 2014 was serving as a station crewmember and the mission commander.

That fall, I was proud to arrange a live video conference in the Fiske Planetarium so Steve could talk to the students while he was on the Space Station. Today, Steve shares his experiences at Boise State University, leading and advising student teams participating in NASA’s Artemis Challenges, inspiring them to do great things in science and engineering.

Joe Tanner is a retired NASA astronaut, Navy pilot and CU Boulder teaching professor. During his 16-year career as an astronaut, he flew four missions on the space shuttle, one to the Hubble Space Telescope and two to the International Space Station. He also mentored astronaut Sarah Gillis (AeroEngr’17) when she was a CU student; Gillis traveled to space in fall 2025 with SpaceX.

Photo courtesy NASA

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From quantum science to journalism, these five CU Boulder students, alumni and faculty are making bold, world-shaping contributions.

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Colorado Firefly Field Guide

Anna Tolette — Mon, 07 Jul 2025 20:03:02 +0000

Colorado Firefly Field Guide Anna Tolette Mon, 07/07/2025 - 14:03

Kelsey Yandura

“Magic is just science we don’t understand yet,” science fiction author Arthur Clarke famously penned in the 1960s. If that’s true, CU Boulder computer science researchers have been busy studying the fairy tale of fireflies in Colorado.

The work looks romantic, but it’s no picnic: In twilight vistas across the state, doctoral student Owen Martin (PhDCompSci’25) and associate professor Orit Peleg tow cameras and computers to document firefly populations and decode their flash patterns. It’s all part of a longstanding effort to understand firefly communication.

When the scientists discuss their work, locals are often surprised.

“A lot of people here come from places like the Midwest, where they’ve seen fireflies,” Martin told CU Boulder Today in July 2024. “But they don’t know about them in their own backyards.”

That’s why he’s eager to raise what he calls “firefly literacy” in the state.

Fireflies have quietly flickered in Colorado for centuries, though the first formal documentation came in 2016, when naturalist Tristan Darwin Kubik identified a population near Fort Collins. Genetic testing suggested they may represent a previously undocumented species, potentially dubbed Photuris coloradensis.

In 2018, Martin and Peleg began tracking fireflies, which have been documented in at least 19 counties, including near Fort Collins, Loveland, Greeley, Pueblo, Mofat, Divide, Durango and Carbondale.

Why are sightings so rare? Studies show fireflies prefer swampy environments — wetlands, meadows and areas near streams and ponds. Their patchy distribution and brief annual activity window leave many residents unaware of their presence.

As magical as these discoveries are, scientists warn they could be short-lived. Habitat loss, wetland drainage, livestock grazing, urban development and light pollution all pose serious threats.

“They are very special. We have a lot to learn from them, but also, they are under threat from environmental issues,” Peleg told CU Boulder Today.

Residents can help to protect these luminescent creatures by assisting with flash data collection, supporting habitat restoration, staying on marked trails and turning of outdoor lights from June to August, especially near wetlands.

“Biodiversity is magical,” Martin added. “And if we don’t alert the right people that these cool fireflies, that are really rare, are in this habitat, we’ll lose them forever. And then you lose the kind of wonder and magic they bring to you.”

To spot them, keep your eyes peeled from mid-to-late June through mid-July, usually after 9 p.m. in swampy or wetland areas.

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Illustration by Sunnu Rebecca Choi

CU Boulder researchers are uncovering the story of Colorado’s rare fireflies.

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How to Embrace AI

Anna Tolette — Mon, 07 Jul 2025 19:53:59 +0000

How to Embrace AI Anna Tolette Mon, 07/07/2025 - 13:53

Christie Sounart

CU law professor Harry Surden worked as a software engineer for five years before deciding to fuse his interests in tech and law. He attended Stanford Law School, where he helped create a groundbreaking interdisciplinary research center, the Stanford Center for Legal Informatics (CodeX), where he remains involved today. He joined CU Boulder in 2008, and his research focuses on the intersection of artificial intelligence (AI) and law.

What spurred your interest in technology and law?

As an undergraduate, I wondered about this interplay between society, computer science and law. I was working as a software engineer and kept interacting with the legal sector, noticing ways in which aspects of law were becoming standardized — and to some extent automated.

What brought you to CU Boulder?

Colorado Law has a leading technology policy center, the Silicon Flatirons Center, led by well-known academics doing groundbreaking research — at the time Phil Weiser and Paul Ohm — and I was attracted to the idea of working with them. I was also very interested in moving to Boulder, which I had heard a great deal about. It turned out to be an absolutely terrific place to live.

What are your thoughts on the impact of large language models (LLMs)?

LLMs are absolutely revolutionary. I have studied artificial intelligence for about 20 years. For 17 of those years, I was somewhat disappointed. I observed that AI of the era prior to 2022 was good in very specific, narrow circumstances, but was far from the AI systems that most people conceived of when they conjured up the notion that machines could think and reason. With the advent of ChatGPT and LLMs since 2023, we are much closer to that vision of AI.

Today’s AI systems can understand and process ordinary language. Now, these AI systems are still simulation machines, and are not ‘thinking’ or conscious. They reproduce variants of complicated patterns that they have previously seen in billions of pages of written text and video. Nonetheless, they are extremely useful systems able to engage in fairly complex and advanced problem solving and analysis.

How often are you using ChatGPT?

I use ChatGPT (as well as Claude and Gemini) nearly every day. Part of the reason is due to my academic research, which aims to benchmark the legal reasoning and analysis abilities that AI models have for legal scenarios.

At this point, most of the frontier-leading AI models can engage in reasonably accurate legal reasoning for basic legal scenarios. But there are a couple of caveats. First, they make mistakes. They sometimes ‘hallucinate,’ inventing case names or occasionally misdescribing the holding of legal cases, so professionals have to be careful in completely relying on these systems. The second limitation is that such AI systems are still not great at complex and nuanced legal scenarios that rely upon the intuition, tacit knowledge and experience of attorneys.

How can LLMs be used to benefit the general public?

These models are not perfect, so we have to learn and practice their strengths and account for their weaknesses. I think of answers from ChatGPT as kind of background information that is likely reliable 90% of the time, but I still want to double check. I often cross-check answers across two or three different models in an attempt to triangulate on common knowledge.

How do you keep up with the AI industry?

I follow the academic research that is produced and uploaded to the academic article archive site for Cornell University’s arxiv.org. I also read the content of researchers on social media and watch the recordings of academic lectures or conferences on YouTube. However, primarily, I continually use the AI systems and test their strengths and weaknesses over time.

What should people know about the ways AI can intersect with the law?

AI can be very useful for access to justice. In the U.S., people who are involved in civil (non-criminal) cases, such as family law, landlord tenant law, wage disputes and immigration, have no right to counsel. An estimated 80% of Americans who have a civil matter cannot afford an attorney or do not have access to attorneys. AI may be able to help bridge that gap and provide people with a better option for legal advice and information.

How should law schools prepare students for the ethical dilemmas that AI may present in practice?

Law schools should be cautiously studying and, to some extent, embracing AI. I try to inculcate in my students principles of good AI usage in learning.

In education, there are two ways that AI can be used: to substitute for learning or to complement and enhance learning. Students who use AI should always reflect upon what any use of AI is doing. They should avoid uses where the AI is doing the work for them. However, AI can be a terrific learning enhancement. Imagine you read about a legal case for class, and you have some core confusion and unanswered questions. Here, you’d have the opportunity to use AI to connect the dots, enhancing your comprehension.

Do you believe current regulations are adequate to manage the risks posed by AI systems in society?

I think we should be cautious in regulating AI too early. AI has both benefits and risks, and we should avoid disproportionately attempting to predict future problems that have not yet arisen and may not arise. In my opinion, the best approach is to engage in continual information gathering and monitoring.

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Photos by Glenn Asakawa

CU law professor Harry Surden discusses the ways AI can be used in daily life.

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Astronaut Sarah Gillis is the First to Play Violin in Space

Anna Tolette — Mon, 10 Mar 2025 20:29:29 +0000

Astronaut Sarah Gillis is the First to Play Violin in Space Anna Tolette Mon, 03/10/2025 - 14:29

Christie Sounart

At more than 870 miles above Earth, this was no ordinary violin recital.

On Sept. 13, 2024, Sarah Gillis (AeroEngr’17) played “Rey’s Theme” from Star Wars: The Force Awakens by legendary composer John Williams — from a SpaceX Dragon spacecraft. As she played, Gillis firmly pressed her violin to her shoulder with her chin as she floated around the zero-gravity chamber, her hair flowing wildly.

Gillis’ three astronaut crewmembers filmed the inaugural performance as part of the Polaris Program’s Polaris Dawn mission, then transmitted the video to Earth via Starlink, a laser-based satellite communication.

Polaris Dawn posted the video, “Harmony of Resilience,” on X that day as part of a partnership with St. Jude Children’s Research Hospital and El Sistema USA, which supports American music education programs. The video included Gillis’ performance and clips from orchestras playing the same piece in Los Angeles, Boston, Haiti, Sweden, Brazil, Uganda and Venezuela.

“The whole music moment was meant to inspire and show what’s possible when you can bring the world together,” Gillis said in an interview two months after returning to Earth.

“The whole music moment was meant to inspire and show what’s possible when you can bring the world together.”

Gillis reflected on the months of preparation for the performance, which included having engineers completely reconstruct her violin to survive the harsh space environment, and meeting Williams himself at the Los Angeles recording session.

“That was probably more stressful than actually going to space, if I’m completely honest,” said Gillis, who does not play violin professionally. “I was so nervous that he would show up and say, ‘No, you don’t have the rights to use this anymore.’ And instead he was so kind and supportive.”

From Training Astronauts to Becoming One

Gillis first gained interest in space as a high school student at Boulder’s Shining Mountain Waldorf School, where she attended a CU Boulder space for nonmajors course with her brother David Levine (FilmSt, Hist’13) and met former CU instructor and NASA astronaut Joe Tanner. Tanner helped Gillis with a space-related project she had for school, and he encouraged her to consider engineering at CU Boulder.

“He really planted that seed,” she said. “I honestly don’t know that I would’ve considered engineering if that hadn’t happened.”

After Gillis returned to Earth, Tanner — who flew on four NASA space shuttle flights from 1994 to 2006 — was eager to swap space stories with her.

“Being a friend to Sarah was perhaps my greatest joy during my eight years at CU,” said Tanner. “I may have helped open a few doors for her, but she made everything happen. I couldn’t be more proud of her, even if she were my own daughter.”

During her junior year at CU, Gillis took an internship at SpaceX that lasted more than two years. She helped develop and test displays and interfaces on the interior of the company’s Dragon spacecraft, the first private spacecraft to take humans to and from the International Space Station.

“I got to see some of those design decisions in space on my mission,” she said. She joined SpaceX full time in August 2017 as a space operations engineer, training astronauts on the interfaces she’d already worked on.

Several years later, her boss called a surprise meeting with her. Jared Isaacman, Polaris Dawn’s mission commander, was there to invite her to become part of the crew as a mission specialist, joining himself, Scott Poteet (mission pilot) and Anna Menon (medical officer and mission specialist).

“My response was, ‘Hell yes, but I’ll need to talk to some people first,” she said. “I immediately walked out of the room and straight downstairs to my husband, who worked at SpaceX with me. He had his headphones on at his desk. I tapped him on the shoulder and said, ‘I need to talk to you.’ … It was very special to share that exciting news.”

Five Record-Breaking Days

Two and a half years later, on Sept. 10, 2024, SpaceX’s Falcon 9 rocket launched the crew aboard a Dragon spacecraft from NASA’s Kennedy Space Center in Florida. One of the crew’s main objectives on the mission was to conduct research to help better understand the human effects of space flight and space radiation. This included the first spacewalk from Dragon.

On the third day of the mission, Gillis and Isaacman exited the spacecraft in SpaceX’s newly designed and developed extravehicular activity spacesuits. For 10 minutes, she tested different components of the suit and became, at 30 years old, the youngest astronaut to complete a spacewalk.

When asked to describe the feat in one word, she settled on “dark.”

“I was emerging into the total blackness of space. It’s this immense void where you realize how close to Earth we are and how much is still left to explore out there, but it’s also this overwhelming dark blanket that is surrounding you.”

"It’s this immense void where you realize how close to Earth we are and how much is still left to explore out there."

The next day was her violin performance, which was planned to test the connectivity of SpaceX’s Starlink laser-based internet from space. The data may help improve communications for future missions to the Moon and Mars.

The crew also conducted other experiments — including gathering data on space radiation — that could help advance human health for future long-duration space flights.

Gillis noted one surprising aspect of being in space she hadn’t prepared for: how easily things got lost without the presence of gravity.

“It was always a constant treasure hunt of, ‘Has anybody seen this? Has anybody seen that?’” she said, adding that a missing camera SD card was found in the spacecraft weeks after landing. “You’d stick something with Velcro, then turn around and it would be gone.”

The historic mission lasted five days and ended with a successful splashdown off the coast of Florida.

“I hope that it is inspiring to people to see what the future of human spaceflight could be and where we’re going — that it is a possibility that more and more people are going to go to space.”

“I hope that it is inspiring to people to see what the future of human spaceflight could be and where we’re going — that it is a possibility that more and more people are going to go to space,” Gillis said.

The Next Step

Gillis’ husband, Lewis Gillis (Aero Engr’17; MS’17), formerly a SpaceX senior propulsion engineer, reflected on his wife’s extraordinary career to date when the couple visited campus this past November.

“With some curiosity and passion and connecting to all the humans around her, Sarah’s made it quite a long way,” he said. “I’m excited to see what she builds next and who she meets along the way.”

Gillis said she would reconsider another spaceflight if given the opportunity, but she is eager for others to experience space first. She remains in her astronaut training position at SpaceX.

Reflecting on her historic mission, she said: “I think the more people we can get into space to see the world from that perspective, the better off humanity will be.

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Photo by Glenn Asakawa; Polaris Dawn Crew (violin)

SpaceX's Sarah Gillis made history by becoming the youngest astronaut to complete a spacewalk and perform the first violin recital in space.

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Thinking Huts Is Printing a Brighter Future

Anna Tolette — Mon, 10 Mar 2025 20:24:56 +0000

Thinking Huts Is Printing a Brighter Future Anna Tolette Mon, 03/10/2025 - 14:24

Kelsey Yandura

In 2015, “3D printing” still conjured up images of the absurd, the novel or the futuristic — think custom tabletop game pieces, small replacement parts, decorative novelties and even 3D-printed chocolate.

But Maggie Grout (Mgmt’21) has never been one to think small. At just 15 years old, three years before she enrolled as a Buff, Grout walked up to her dad and asked a life-changing question: “What if we 3D-printed a school?”

The answer, in the form of Grout’s nonprofit Thinking Huts, would ripple out to impact not only her own future, but the futures of families and communities across the globe.

Welcome to Bougainvillea

In 2022, seven years after Grout’s initial idea sparked, Bougainvillea was born — a 700-square foot, 3D-printed school in south central Madagascar and Thinking Huts’ first officially completed project.

According to data from UNESCO and the United Nations, sub-Saharan Africa faces the highest education exclusion rates in the world. In Madagascar, the crisis is acute: three-fourths of secondary-age children don’t attend school due to issues like overcrowding and dangerous commutes. One-third won’t complete primary education, and 97 percent of 10-year-olds who finish primary school cannot read simple sentences.

Thinking Huts hopes to change that. Bougainvillea is small but mighty, holding up to 30 students and serving as a beacon of hope for the local community and proof of Thinking Huts’ potential to address the global education opportunity gap.

And while the grunt work of planning and preparing spanned the better part of a decade, the execution was swift — using an industrial-scale 3D printer and a cement mixture, an on-site team printed the modular wall components in just 18 hours. These units were designed to fit together seamlessly, forming a puzzle-like assembly to complete the structure. The roof, doors and windows, handcrafted by local artisans and builders, were added on several weeks later.

Grout recalls: “When I was looking at the walls being printed, I kept thinking, ‘Oh, my gosh, this is crazy. It’s finally happening.’”

Patience Pays Off

Thinking Huts was forged at the intersection of two different causes: education and sustainability. For Grout, they are intimately connected.

“We know that in order for us to continue to increase access to education in these communities, we have to have a focus on sustainable building metrics,” said Kristen Harrington, director of development at Thinking Huts. “A lot of organizations focus on speed. But if you’re looking at how to build more holistic communities and better equip families and address the poverty cycle, you have to take the whole picture into account.”

While this kind of long-term, intersectional problem-solving does not lend itself to the immediate gratification of a “quick fix” — each decision requires careful thought, planning and foresight — Grout said the result is lasting.

“It’s not an overnight thing,” said Grout. “We’re trying to set up the next few generations to succeed and go further than us, rather than thinking of the short term. It’s a long haul type of journey.”

A Relational Approach

For Thinking Huts, this kind of holistic approach means focusing on building strong, equitable, sustainable relationships in their partner communities.

“Relationship building is a slow drip,” Harrington said. “It’s an opportunity for us to really assess what’s going to be able to create sustainability in these structures for generations.”

In order to create this sense of longevity, Thinking Huts spends time building trust with community leaders and students, taking their needs and skills into account and assessing how to collaborate with local workers, builders, artisans and technicians. For Bougainvillea, this meant partnering with area manufacturers in the construction process, handing off 3D operational skills that can be applied to future construction projects.

Grout said this relationship-first ethos has roots in her years at CU Boulder, where she said the people she met were the most impactful, including her mentorship with Mike Leeds (Fin’74).

“I think even now I’m realizing how critical it is to have a network of people around you,” she said. “The relationships I developed are the biggest things that I took away from school.”

CEO with a Story

Grout said her passion for educational opportunities has been a lifelong journey. Born and abandoned in a rural village in China, she was adopted by American parents at 18 months old and grew up in the U.S.

“I think I’ve already always been more aware of how people’s lives are different from mine,” said Grout. “I had big visions from a young age, just knowing my life could have followed a very different path. That’s what drew me more to understanding the importance of education.”

The result is a work ethic and leadership style that Harrington said extends beyond her years and has garnered international attention from major media outlets like Forbes and Good Morning America. In fall 2024, Grout was featured as one of Time magazine’s featured “Next Generation Leaders.”

“Maggie has this true grit and determination,” said Harrington. “She doesn’t want any child to feel like they don’t have the access that she had because she was adopted. So now she can bring opportunity to children in the pockets of the world that often don’t see innovation.”

Honeycomb on the Horizon

For Grout and her team of 10, Bougainvillea is just the beginning. Next up is the Honeycomb Campus. Named for its design of adjoining hexagonal bases, this multi-building project will serve three remote villages on the west coast of Madagascar. The project is set to include solar power and Wi-Fi access and will impact more than 200 students ages four to 16, starting in summer 2025.

When asked about her approach to the future and how she’d encourage other innovators in philanthropy and sustainability, Grout emphasized a sense of hope.

“I know that what we do now will have a major impact later on,” she said. “I am trying to aspire for a legacy of change, even if it takes time.”

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Photos courtesy Thinking Huts

Thinking Huts, founded by Maggie Grout, uses 3D printing technology to build sustainable schools in underserved communities.

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Sustainable Spinouts: Innovation in Action

Anna Tolette — Mon, 10 Mar 2025 20:20:54 +0000

Sustainable Spinouts: Innovation in Action Anna Tolette Mon, 03/10/2025 - 14:20

Heather Hansen

Imagine strolling down a sidewalk made from algae or building a wall with the help of microbes grown in a bioreactor.

This extraordinary image may sound futuristic, but the technology is already here, thanks to Prometheus Materials, a sustainability-focused CU Boulder spinout giving concrete blocks a makeover with the help of environmentally-friendly bio-cement-making bacteria, algae and microbes.

CU Boulder civil, environmental and architectural engineering professor Wil Srubar founded the Longmont-based company in 2021 with CEO Loren Burnett and a cross-disciplinary team of CU Boulder collaborators, including civil, environmental and architectural engineering associate professors Mija Hubler and Sherri Cook and the late Jeff Cameron, formerly of biochemistry.

The impetus for the research group formed several years earlier around a call for proposals from the Defense Advanced Research Projects Agency (DARPA), the research and development arm of the U.S. Department of Defense (DoD) focused on developing new technologies for the military.

“It sounded impossible, a bit like a Frankenstein objective of bringing building materials to life.”

“Our charge from the DoD was to grow a material that had both biological and structural function,” said Srubar. “It sounded impossible, a bit like a Frankenstein objective of bringing building materials to life.”

But the challenge was right for Srubar, who leads CU Boulder’s Living Materials Laboratory, where researchers aim to create construction materials that are in harmony with the natural world.

“We had been thinking about these concepts for some time,” he said. “But this was the first government investment in this particular area that really catalyzed an entirely new field.”

After two years of “spinning their wheels,” said Srubar, the team had a breakthrough in the lab when they made the first sample of engineered living materials that fulfilled DARPA’s requirements. Srubar said this success required looking back — way back — to life on Earth before humans. They were inspired by formations called stromatolites, stony structures built by microscopic photosynthesizing organisms known as cyanobacteria, which are among the oldest living lifeforms on the planet.

“We know nature has built really strong, tough materials,” said Srubar.

By studying the composition of coral and seashells, for example, the team figured out how to make lab-grown versions of the natural phenomena.

“You apply principles of biomimicry, you bring that process into the lab and beautiful things can happen,” he said.

Now Prometheus Materials, named for the legendary Greek god who introduced fire and other technologies to humans, is making sustainable building materials with a process that combines microalgae with other natural components to form zero-carbon bio-cement and bio-concrete with the major goal of reducing carbon emissions in the construction industry.

This is so important because making concrete — the most ubiquitous human-made building material on earth — generates massive amounts of CO2 and contributes significantly to climate change. Global cement manufacturing produces 11 million tons of CO2 every day (roughly equivalent to emissions from all the cars in the world), or about 8% of the world’s total CO2 emissions, according to the U.S. Geological Survey. And, according to the U.S. Department of Energy, demand for cement in the U.S. alone is expected to double by 2050.

As the company realizes its transformative role in the construction industry, it has raised $8 million in private funding in the past year and was awarded a role in a $10 million grant from the Department of Energy (DOE) that will fund collaboration between a trio of national labs. Within this partnership, Prometheus will join other institutions in the field to establish methods for measuring, reporting and verifying CO2 removal and sequestration in cement and concrete materials.

Environmental Stewardship

Prometheus is just one example of CU Boulder’s strong network of researchers bringing innovations out of labs and into companies that have real-world impact — the university is a national leader and spinout powerhouse, launching 35 companies in fiscal year 2024 and over 100 since 2016, according to Bryn Rees, associate vice chancellor for innovation and partnerships. Since 2000, the university has launched 44 sustainability-focused spinouts, including a dozen new companies in just the past few years, said Rees, who leads Venture Partners at CU Boulder, the university’s commercialization arm for the campus.

According to Rees and Srubar, several factors combine to make CU Boulder so effective at generating these kinds of companies: research expertise, commercialization resources, market need and an eagerness to improve our world.

“There’s such a history of environmental stewardship here at the University of Colorado, and in Boulder specifically, and that’s very much a part of our institutional fabric,” said Srubar. “We do sustainability research really well and it’s one, if not the pillar, of our education and research mission at the university.”

Rees agreed: “It’s a function of our research prowess in that area. There are many highly talented researchers who care deeply about the climate crisis, and so that’s where they’ve oriented their research.”

Those innovations could be used in lots of different ways, but Rees shared, “The innovators are saying, ‘We want to apply these technologies to really important problems.’”

For Srubar and others, the drive to make the world a better place is strong.

“It all begins with a vision and a belief that, first, the world is not static; it can become whatever you dream,” he said. “Understanding that you have the power and the potential to affect change is what really fueled me and our team.”

Rees also sees market need as critical to driving sustainability-focused ventures.

“There is an abundance of funding opportunities and demand from the market to have these types of solutions,” he said. “You’ve got the push from what CU Boulder is really good at, and you’ve got the pull from a true need for these types of solutions across different industries.”

“You’ve got the push from what CU Boulder is really good at, and you’ve got the pull from a true need for these types of solutions across different industries.”

Driving Meaningful Change

Another company with CU Boulder beginnings is the well-established, Boulder-based LongPath, founded in 2017 by Greg Rieker, chief technology officer and CU Boulder associate professor of mechanical engineering, with colleagues Caroline Alden (PhDGeol’13), Sean Coburn (PhDChem’14) and Robert Wright, former CU Boulder senior researcher.

LongPath harnesses quantum technology to detect fugitive methane emissions from oil and gas operations, innovation that benefits industry and investors — and the planet. The company’s breakthroughs in laser technology and quantum sensing, rooted in CU Boulder’s Nobel Prize-winning optical frequency comb technology, created a leak detection system to do what previous approaches could not: continuously detect invisible-to-the-eye natural gas escaping from pipes on-site at oil and gas facilities.

Finding and patching those leaks is a triple win — in industry cost savings (from $820 to $980 million per year), and improved air quality and public health. LongPath’s technology can identify natural gas leaks that sicken and displace thousands of people each year and cut greenhouse gas emissions, particularly methane.

Today, LongPath’s Active Emissions Overwatch System is live at oil and gas operations in several states, covering hundreds of thousands of acres. Rieker and his team see the impacts of those systems growing each day, and he estimates that each system saves between 40 and 80 million cubic feet of methane annually.

“Every time we deploy a new system, it really is impactful,” he said, adding the team still celebrates every large leak located. “We’ll nail a big one for a customer, and that’s exciting.”

Similar to Srubar, LongPath’s founders were motivated by protecting the environment.

“Many academics measure impact in terms of papers published or citation rates. I always wanted the impact of my work to be more palpable,” said Rieker. “In 2024, LongPath stopped more than 6 billion cubic feet of methane emissions and counting. That’s impact, and that’s why we launched.”

“Many academics measure impact in terms of papers published or citation rates. I always wanted the impact of my work to be more palpable.”

Wil Srubar of CU Boulder's Living Materials Laboratory

Recently, the company received landmark financial backing from the DOE for a loan of up to $189 million to accelerate the scale-up of the company’s monitoring systems.

Another game-changing company making significant strides in sustainability is Louisville-based Solid Power, founded in 2011, based on technology developed by CU Boulder mechanical engineering professor Se-Hee Lee and professor emeritus of mechanical engineering Conrad Stoldt (Chem’94).

Similar to Srubar and Prometheus Materials, Stoldt and Lee answered a call from DARPA. Their challenge was to double the energy density of a rechargeable battery.

“The metrics they wanted to reach were unheard of,” said Stoldt, but he and Lee accepted the challenge anyway. “We saw it as an opportunity… and we sat down and determined that, at least on paper, the only rechargeable battery technology that could meet the specs for the program was a solid-state battery.”

Lee and Stoldt partnered with Douglas Campbell, a small business and early-stage product developer, and chief technology officer Joshua Buettner-Garrett to start Solid Power. Along with then-mentor Dave Jansen, the team negotiated a commercialization agreement with Venture Partners (known then as the CU Technology Transfer Office), making the company an exclusive licensee to the university’s intellectual property.

What began as an idea Stoldt said was “bootstrapped” in CU Boulder labs, Solid Power is now an industry-leading developer of next-generation all-solid-state battery technology. As their name suggests, solid-state batteries (SSBs) differ from conventional batteries in that the electrolyte powering them is a solid material instead of a gel or liquid. That gives SSBs many advantages over lithium-ion batteries now widely used in electronics, toys, appliances and — critically — electric vehicles.

Solid Power’s design bests lithium-ion cells on safety, cost, durability and battery life — attributes long sought by consumers and automakers. Their technology swaps the flammable liquid in lithium-ion cells with a solid, sulfide-based electrolyte that is safer and more stable across a broad temperature range. Solid Power’s cells also easily outpace the conductivity and energy density of today’s best rechargeable batteries. The result is a smaller, lighter cell that is cheaper and has a longer-lasting charge.

Solid Power, which went public in 2021, employs many Forever Buffs and boasts major partnership deals with BMW and Ford, along with a new 75,000-square-foot manufacturing facility in Thornton.

Their continued innovation was recognized with a recent $5.6 million DOE grant to continue developing its nickel- and cobalt-free cell, and, late last year, the company began award negotiations for up to $50 million in DOE funding. With this project, Solid Power intends to launch the world’s first continuous manufacturing process, allowing the company to produce its critical electrolyte material more quickly and at a lower cost.

From Lab to Marketplace

With the burgeoning success of Prometheus and others, Srubar hopes to inspire other researchers to make the leap to the marketplace. To that end, he was recently named Deming associate dean for innovation and entrepreneurship, a new role in the College of Engineering and Applied Science focused on building bridges between labs and the marketplace.

“This is something I’m so passionate about — shining a light for those inspired and driven by a vision to see change in the world and to follow that pathway of commercialization,” Srubar said. “I think CU Boulder’s reputation will continue to grow in this space, and I’m excited to be a part of it.”

“I think CU Boulder’s reputation will continue to grow in this space, and I’m excited to be a part of it.”

Emerging ventures at CU Boulder

PAGE Technologies: Co-founded in 2023 by Elliot Strand (MMatSciEngr’21; PhD’23) and Payton Goodrich to commercialize a low-cost platform to transform agricultural and environmental monitoring, enhance fertilizer use efficiency, improve water resource management and advance climate resilience efforts.
eat meati: Within months of beginning to collaboratively research mushroom root (mycelium) together as PhD students, Tyler Huggins (MEngr’13; PhDCivEngr’15) and Justin Whiteley (MMechEngr’14; PhD’16) knew they’d found a nature-based way to create meat alternatives.
Tynt Technologies: Founded in 2020 by Michael McGehee (CU Boulder Chemical and Biological Engineering) and then-PhD students Tyler Hernandez and Michael Strand. After developing the initial technology for energy-efficient windows at Stanford, they moved to CU Boulder to complete their work and found the company. Tynt allows users to fully control the light and solar heat entering a home, turning panes from clear to opaque with the touch of a button.
Latimer Controls: Founded in 2022 by Simon Julien (ApMath’21; MS’22) and Zachary Jacobs (ChemBiolEngr’21) to bring to market their innovative solar energy control system that solves the issue of intermittent renewable power. The technology was co-invented by Julien, working as an undergraduate and master’s student in collaboration with Bri-Mathias Hodge (Electrical, Computer and Energy Engineering), Amirhossein Sajadi (Renewable and Sustainable Energy Institute) and the National Renewable Energy Laboratory.
Mana Battery: A CU Boulder startup founded on discoveries from Chunmei Ban’s laboratory (CU Boulder Paul M. Rady Mechanical Engineering), is developing best-in-class sodium battery technology with the potential to replace lithium-ion batteries.
Green Steel Environmental: a CU Boulder startup founded on technology discovered by Mark Hernandez (Environmental Engineering) uses waste from steel manufacturing to replace hazardous chemicals from wastewater treatment.

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Illustrations by Daniele Simonelli

From engineered "living" sidewalks to quantum-fueled leak detection systems, several CU spinouts are bringing earth-focused breakthroughs to the marketplace.

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Mining the Moon: A New Era of Commercial Space Exploration

Anna Tolette — Tue, 12 Nov 2024 20:49:47 +0000

Mining the Moon: A New Era of Commercial Space Exploration Anna Tolette Tue, 11/12/2024 - 13:49

Kelsey Yandura

Elizabeth Frank (PhDGeol’14) is helping pave the way for a new era of space exploration and commerce as the chief scientist at Interlune, a Seattle-based startup aiming to become the first private company to harvest the Moon’s natural resources, namely the stable isotope helium-3.

This useful gas, while rare on Earth, is abundant on the Moon and sought after for its uses in medical imaging, nuclear fusion research, quantum computing and more. For the extraction and transportation of the isotope, Interlune plans to build a lunar harvester that the company would fly via spacecraft to the Moon.

What is the vision in terms of the future of space mining and space commerce?

We are trying to find novel ways to leverage the commercial space sector for planetary exploration. What makes people excited about Interlune is that even though we have this vision that seems kind of sci-fi, we have actual customers on Earth in areas like quantum computing, medical imaging and national security. There is an actual demand.

Your PhD was in planetary geochemistry at CU. What led you to Boulder?

There’s an incredible space community in Boulder — a lot of interdisciplinary work among CU departments and organizations like LASP and the Southwest Research Institute. When I was touring CU, I was handed a list of planetary scientists in Boulder that was upwards of 50 people. I thought, “Oh my gosh, there’s just so much going on.”

Your work seems to challenge the idea that industries exist in a silo. Can you talk more about your multidisciplinary approach?

When you’re a PhD student, you are expected to be a specialist. But I don’t actually identify anymore as a specialist. I’m a generalist — I have a PhD in planetary geochemistry, but I’ve also worked in spacecraft engineering, mining consulting, business development and more. To move humanity forward, you need people like me to stitch the specialists’ work together in new and exciting ways.

What topics in the field have been piquing your interest these days?

Ethics and sustainability are really top of mind. The mining industry has a long legacy of harming both people and the environment. I think that we can learn from the mistakes of the past. We want to be intentional and thoughtful about how we use technology and extract space resources for human use.

Any thoughts or advice for recent graduates?

I think PhD students and graduates should know that just because you got your degree in one topic, doesn’t mean you have to stay in that field. You can redirect your career in unexpected and exciting ways. Stay open to opportunities and take them — you never know where they’ll lead you.

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Photo courtesy Elizabeth Frank

Elizabeth Frank (PhDGeol’14) is helping pave the way for a new era of space exploration and commerce as the chief scientist at Interlune, a Seattle-based startup aiming to become the first private company to harvest the Moon’s natural resources.

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The Making of Colorado’s Quantum Valley

Anna Tolette — Tue, 12 Nov 2024 20:42:06 +0000

The Making of Colorado’s Quantum Valley Anna Tolette Tue, 11/12/2024 - 13:42

Dan Strain

Qizhong Liang (PhDPhys’25) squeezes around a worktable tucked into the back corner of a CU physics lab. Spread out in front of him is an intricate arrangement of mirrors, lenses and tubes. But what draws Liang’s attention is what seems to be an empty plastic bag.

“Want to guess what it is?” asks Liang, a doctoral student at JILA, a joint research institute between CU Boulder and the National Institute of Standards and Technology (NIST).

The bag isn’t, in fact, empty but contains something almost precious: breath. Researchers at Children’s Hospital Colorado collected the sample from a child hospitalized with pneumonia. Liang’s tabletop apparatus will generate a powerful laser, known as a frequency comb, to scan the breath sample and identify the unique chemical fingerprints of the molecules floating inside.

Ultimately, Liang and his colleagues hope the laser can serve as a tool to diagnose children with asthma and pneumonia.

But he and his advisor, Jun Ye (PhDPhys’97), aren’t medical professionals. They’re researchers working at the forefront of a field called quantum physics, or the study of matter and energy at its most fundamental level, which deals in the bizarre behavior of things like atoms and electrons.

“This is brand new stuff,” said Liang. He notes that transforming such fundamental science into new technologies is thrilling, but also lonely. “You don’t have many [other experts] to talk to,” he said.

Yet the discipline may soon be a lot less lonely. Across the country, and particularly in Colorado, the momentum around quantum physics is gathering speed. Scientists and engineers are channeling their understanding of the field into technologies that could improve people’s lives.

“It’s a natural progression of the revolution that’s been ongoing since the 1960s,” said Ye, a JILA and NIST fellow and a professor adjoint of physics. “We are just getting faster.”

In Colorado alone, quantum technology companies employ roughly 3,000 people, a number that may jump to more than 10,000 across the Mountain West over the next decade, according to one estimate. Sitting at the center of this revolution is CU Boulder, where researchers have spent decades trying to lasso the quantum realm — earning four Nobel Prizes in physics in the process. The university has launched a suite of programs to turn quantum advancements into real-world technologies. CU is also nearly unmatched among public universities when it comes to training students to become the next generation of quantum workers.

“The reason the state of Colorado has been so successful in quantum has been CU Boulder,” said Heather Lewandowski (PhDPhys’02), a JILA fellow and professor in the Department of Physics. “It goes back to our foundational research and to our training and preparation of students.”

Colorado’s quantum future

This year marked a milestone for CU Boulder and the Mountain West in the global race for quantum innovation and leadership. In July, the coalition Elevate Quantum unlocked more than $127 million in federal and state funding for quantum advancements.

Elevate Quantum is a consortium of 120 organizations across Colorado, New Mexico and Wyoming (CU Boulder is the powerhouse partner), with the mission of growing the Mountain West’s prowess as a global leader in the quantum industry.

After applying to the U.S. Economic Development Administration’s (EDA) Tech Hubs program, the coalition gained its official Tech Hub designation in 2023. Only 31 out of nearly 200 consortia were awarded the designation and could proceed to the program’s second phase: competing for implementation grants. In July, the federal government named Elevate Quantum one of the 12 Tech Hubs that would be awarded funding.

“It’s been a wild year,” said Scott Sternberg, executive director of the CUbit Quantum Initiative, which “convenes, coordinates and catalyzes” the quantum activities on campus. “The challenge is now to continue the fundamental discovery while also engineering quantum products and solutions for economic gain.”

The potential applications are vast. Ye, for example, leads a $25 million effort funded by the National Science Foundation called Quantum Systems through Entangled Science and Engineering (Q-SEnSE). The bread and butter of his lab are atomic clocks — devices that tell time not with gears and hands, but by tracking the natural behavior of electrons. They’re so precise they can measure the change in gravity if you lift them up by just a fraction of a millimeter. One day, he envisions that scientists could use similar quantum devices to, for example, track magma flow deep below Yellowstone National Park, the site of a supervolcano.

Recently, he and his colleagues made groundbreaking work on a type of atomic clock known as a nuclear clock. It uses lasers to trigger, then measure, extremely small shifts in energy occurring within the nuclei of thorium atoms.

Another team of engineers at CU is using frequency comb lasers, similar to those in Ye’s lab, to detect methane leaks above oil and gas operations. Still others are using quantum sensors to map out the activity of the human brain and even search for elusive dark matter — the seemingly invisible substance that binds the universe together.

Quantum work is now expanding on CU Boulder’s East Campus as well, in an initiative funded by the NSF and led by CU’s Scott Diddams, professor of electrical, computer and energy engineering. The $20 million grant will launch a new facility, the National Quantum Nanofab, where researchers and quantum specialists from Colorado and around the country can prototype and build new quantum technology.

The university is also helping to bring something else to Colorado: the next generation of quantum experts.

Quantum leaders of tomorrow

Denali Jah (EngrPhys’25), a senior studying engineering physics and applied math, found his way to physics in high school. He was having a hard time at home, and his physics teacher noticed and made a point of showing Jah how exciting science could be.

“I really appreciated his approach to life in general — it was one of curiosity,” Jah said.

In 2023, Jah joined the university’s first-ever cohort of Quantum Scholars, one of several CU programs encouraging students to take an interest in quantum physics. As part of that program, Jah and fellow undergrad Annalise Cabra (Math’23) helped to organize the university’s first Quantum Hackathon, in which teams of students compete against each other to solve tricky problems in quantum computing.

Another CU experience, the Quantum Forge, is a year-long course offered through the university’s Department of Physics. It partners students with real quantum businesses in Colorado. Over the span of a year, the students lead a hands-on project for those businesses, such as designing components for an advanced cooling machine known as a “dilution refrigerator.”

Lewandowski, a member of the university’s Physics Education Research Group, noted that the quantum industry is in its infancy — companies are still trying to get a handle on what kind of employees they’ll need. CU Boulder, she said, trains students to be flexible in the field.

“Students can still have their core engineering or physics degree, but you supplement that with a few quantum technology courses, and that can make you very employable,” said Lewandowski.

Jah, for his part, wants to use his new skills to study quantum loop gravity, a trippy theory that seeks to explain how gravity works. He said that quantum physics takes a lot of work, but it’s a path that anyone can follow — as long as they have enough wonder.

“I hope other people can engage in this exploratory process of: How does the world work? Let’s see,” Jah said.

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Illustrations by Brian Stauffer

CU Boulder and Elevate Quantum partners are ready for $127M regional quantum boost. Here’s how it’s all coming together.

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How Ancient Viruses Fuel Modern-Day Disease

Anna Tolette — Tue, 12 Nov 2024 17:23:01 +0000

How Ancient Viruses Fuel Modern-Day Disease Anna Tolette Tue, 11/12/2024 - 10:23

Lisa Marshall

Peek inside the human genome and, among the 20,000 or so genes that serve as building blocks of life, you’ll find flecks of DNA left behind by viruses that infected our primate ancestors tens of millions of years ago.

Scientists have long considered these ancient hitchhikers, known as endogenous retroviruses, as inert or "junk" DNA that were rendered harmless millennia ago. But new CU research shows that, when reawakened, they can play a critical role in helping cancer survive and thrive. The study also suggests that silencing certain endogenous retroviruses can make cancer treatments work better.

“Our study shows that diseases today can be significantly influenced by these ancient viral infections that, until recently, very few researchers were paying attention to,” said Edward Chuong, an assistant professor of molecular, cellular and developmental biology at CU Boulder’s BioFrontiers Institute.

After slipping into the cells of our primate ancestors, these invaders coaxed their unknowing hosts into copying and carrying their genetic material — passing their DNA on to future generations.

While endogenous retroviruses can no longer sicken their hosts or spread like live viruses, they can act as switches that turn on nearby genes, with both good and bad results.

On the plus side, they contributed to the development of the placenta, a critical milestone in human evolution. Chuong’s research also shows they can switch on genes that help us fight infection.

However, endogenous retroviruses also have a dark side.

Chuong’s latest study found that a lineage known as LTR10 is remarkably active in about a third of colon cancer tumors, where it appears to fire up genes that inflame cancer.

The good news: When those viral relics are silenced, the cancer-promoting genes go dark too, and tumor-shrinking treatments become more effective.

As a leading researcher in the burgeoning field, Chuong hopes that by better understanding these oft-neglected bits of the genome, scientists can come up with new ways to treat modern-day illnesses.

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Photo by Glenn Asakawa

Tens of millions of years ago, ancient viruses infected our primate ancestors, leaving flecks of DNA that made their way into the human genome. A new study suggests these “endogenous retroviruses” may not be as harmless as once believed.

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