Biology Alum receives 2025 U Honorary Doctorate

Cecil Samuelson: U Honorary Doctorate


March 13, 2025
Above: Cecil O. Samuelson

Equal parts University of Utah and Brigham Young University, Cecil Samuelson has managed to bleed purple throughout his long career as a higher education leader and physician.

A three-time alum of the U, Samuelson worked as a rheumatologist, medical school dean and as the U’s vice president of health sciences. He left the university in 1993 to join the executive leadership team at Intermountain Healthcare. A year later, Samuelson was called to serve in The Church of Jesus Christ of Latter-day Saints’ First Quorum of the Seventy, before being named as BYU’s president, a job he held for a decade.

“Honorary degrees are a recognition of exceptional human beings who have transformed the world in ways large and small,” said President Taylor Randall. “Cecil, Julie, King and Linda have invested their time, talents and financial support to causes that have changed our university, state and the world. We are so fortunate to have exceptional leaders who, through everyday acts and transformational investments, have changed individual lives, bolstered education and advanced culture. The legacy of their work will live on for years to come.”

Honorary degrees are awarded to individuals who have achieved distinction in academic pursuits, the arts, professions, business, government, civic affairs or in service to the university. The Honors Committee, which includes representatives from the faculty, student body and Board of Trustees, reviews nominations and then consults with an advisory group of faculty, staff and administrators for additional input. Finalists are presented to the university president, who then selects the recipients.

“This year’s honorary degree recipients personify selfless service in higher education, passionate advocacy, life-changing innovations and artistic creativity,” said Jamie Sorenson, chair of the Board of Trustees Honors Committee. “We are so pleased to recognize these exceptional individuals for the ways they have lived their lives and inspired future generations to live theirs.”

You can read more about the 2025 honorees in @TheU.

Tooth enamel helps reconstruct wildlife migrations

tooth enamel helps reconstruct wildlife migrations


March 13, 2025
Above: The late Misha at the Hogle Zoo in Salt Lake City. Photo courtesy of Hogle Zoo.

Utah geologists show how strontium isotopes found in teeth or tusks reveal where large plant-eating animals have roamed.

Teeth recovered from a beloved zoo elephant that died in 2008 are helping University of Utah geologists develop a method for tracking the movements of large herbivores across landscapes, even for animals now extinct, such as mastodons and mammoths.

Outlined in recently published findings, the technique analyzes isotope ratios of the element strontium (Sr), which accumulates in tooth enamel. For large plant-eating land mammals, the relative abundance of two strontium isotopes in teeth and tusks reflects where the creature may have roamed during its lifetime.

“Our study not only adds to our understanding of how tooth enamel records an animal’s Sr isotope exposure, but also helps to reconstruct animal migrations from Sr isotope analysis,” lead author Deming Yang said in a posting about the research. “It can be applied to studies of paleobiology, to answer how megaherbivores migrated in the past. It can also be applied to studies of modern conservation and forensics, to trace the origins of illegal ivory trade and other forms of wildlife trafficking.”

The star of the study is Misha, a female elephant acquired by Salt Lake City’s Hogle Zoo in 2005.

Chemically similar to calcium, strontium from the environment accumulates in highly mineralized tissues, such as animals’ bones and teeth.

“As animals eat and drink, they pick up this environmental signature and store it in their teeth, preserving a series of environmental exposures like historic archives,” Yang wrote. This is because the geology of different places presents different isotope signatures for 87-strontium/86-strontium [87Sr/86Sr] and those isotope ratios are reflected in plants and water.

“We use other elements, but in this case, we’re focusing on strontium, which has proven to be really useful because of its strong link to geology,” coauthor Gabe Bowen said. “Ultimately it comes down to where that element comes from, how the animal gets it into their body and from what sources.”

The isotope 87Sr is radiogenic, meaning it is produced from the decay of another element, in this case rubidium, found next door to strontium on the Periodic Table, whose half-life exceeds 49 billion years, about 10 times the age of Earth. While 87Sr increases over time, the abundance of other strontium isotopes remains fixed. Accordingly, isotope ratios are a proxy for the age of rocks and typically differ from place to place.

Coauthor Thure Cerling, a highly decorated distinguished U professor of both geology and biology, is a pioneer in the use of isotope analysis to shed light on ecological questions such as soil formation, animal physiology, wildlife ecology and climate change.

Read the entire story by Brian Maffly in @TheU

Gamma ray observatory gets green light

Most powerful gamma ray observatory gets green light


March 12, 2025

At the start of the year, the European Commission established the Cherenkov Telescope Array Observatory (CTAO) as a European Research Infrastructure Consortium (ERIC), furthering its mission to become the world’s largest and most powerful observatory for gamma-ray astronomy.

The creation of the CTAO-ERIC will enable the observatory’s construction to advance rapidly and provide a framework for distributing its data worldwide, significantly accelerating its progress toward scientific discovery. On Feb. 13, 2025, the ERIC Council approved to immediately negotiate the establishment of Japan as a strategic partner and the United States, Brazil and Australia as third-party members.

Animation of a blue light beam breaking up into multiple particles and hits Earth's atmosphere, scattering across the globe.

“This field did not exist before 1989 when the first the gamma ray source was detected. At that point, we knew of four sources in the world,” said Dave Kieda, professor in the Department of Physics & Astronomy at the University of Utah and the CTAO spokesperson for the U.S. “The past 35 years, we went from detecting the first to now seeing several hundred. With CTAO, we’re going to see thousands. And the University of Utah is part of that legacy.”

The CTAO-ERIC was established with the international support of 11 countries and one intergovernmental organization that contributed to the technological development, construction and operation of the observatory. For Kieda, the new array will give astronomers an unprecedented view of the mysterious radiation he’s spent his career studying.

“Over the last decade, people have discovered that these high energy gamma rays are present in many, many types of very energetic astronomical phenomenon, but we don’t know much about where they come from,” Kieda said.

 

Read the full story by Lisa Potter in @ The U. Video above:  Animation of a gamma ray hitting Earth’s atmosphere, creating the blue Cherenkov light that flashes for a billionth of a second.

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New state-of-the-art mass spectrometer

 New state-of-the-art mass spectrometer


March 10, 2025
Above: University of Utah members of the Department of Geology & Geophysics, Left to right: Issaku Kohl, Chris Anderson, Chad Ostrander, Juan Carlos de Obeso, Sarah Lambart and Diego Fernandez. Photo by Todd Anderson..

Instrument will help scientists unravel Earth's ancient geological mysteries, past climates and humans' ongoing interactions with the environment.

The University of Utah’s Department of Geology & Geophysics has been awarded a million-dollar grant from the National Science Foundation (NSF) to acquire state-of-the-art mass spectrometry instrumentation for measuring isotope ratios of heavier elements at the precision needed to perform cutting-edge research into Earth’s deep past.

Mass spectrometers have been making accurate and precise isotope ratio measurements of elements such as hydrogen (H), carbon (C) and oxygen (O) for many decades. Isotope ratio differences generally scale with mass, with isotope ratios of these lighter-mass elements exhibiting much larger differences than ratios for the heavier-mass elements. Large differences are easier to measure than small differences.

The instrument acquired through the NSF Major Research Instrumentation program is capable of determining very, very small isotope ratio differences. The instrument’s technical name is the Thermo Neoma “multicollector inductively coupled plasma mass spectrometer,” or MC-ICP-MS for short. The instrument routinely makes accurate and precise isotope ratio measurements for magnesium (Mg), iron (Fe), strontium (Sr), molybdenum (Mo), mercury (Hg), thallium (Tl), lead (Pb), uranium (U), calcium (Ca), potassium (K) and many other heavy elements.

“There’s so many things you can do with it. We have a long list of scientists in our department and beyond who rely on isotope ratio data for their projects,” said Chad Ostrander, assistant professor of geology and principal investigator of the grant.

Joining Ostrander in applying for the grant are Diego FernandezJuan Carlos de Obeso and Sarah Lambart. Chris Anderson and Issaku Kohl also play instrumental roles in the project. The team’s interests cover many fields of research, tracking the selective movement of isotopes today and in the past from Earth’s interior to its surface, between seawater and the seafloor, from ocean to land and between land and life.

Read the entire story by Ethan Hood in @TheU

Pearl Sandick named Interim Dean of the College of Science

Pearl Sandick named Interim Dean of the College of Science

University of Utah Provost Mitzi Montoya announced today that Associate Dean Pearl Sandick has accepted an appointment as interim dean of the College of Science.

Pearl Sandick

Sandick will begin working in this new role on March 15, 2025, and will continue to serve until a new dean is appointed. Montoya will work with the college before the end of the academic year to determine next steps and timing on a search process for a new dean.

Sandick, a professor in the Department of Physics and Astronomy, has been associate dean for faculty and research in the U’s College of Science since 2022. She came to the U as an assistant professor in 2011 and is a theoretical particle physicist studying physics beyond the Standard Model, including possible explanations for the dark matter in the universe.

She earned a Ph.D. from the University of Minnesota in 2008 and was a postdoctoral fellow in the Theory Group at the University of Texas at Austin before moving to Utah. She has been recognized for her teaching and mentoring work with a University of Utah Early Career Teaching Award, a University of Utah Distinguished Mentor Award and the Linda K. Amos Award for Distinguished Service to Women. She has also been recognized as a U Presidential Scholar.

“I appreciate Dr. Sandick’s willingness to take on this important role and to lead the College of Science during a period of growth and change for the U,” Montoya said. “She has proven to be an outstanding professor, administrator and mentor at the university, and I look forward to the contributions she will make as interim dean.”

Sandick’s move comes as current College of Science Dean Peter Trapa begins serving March 15 as the inaugural vice provost and senior dean of the Colleges and Schools of Liberal Arts and Sciences (LAS). In that role, he will provide strategic advancement and management of the College of Humanities, College of Science, College of Social and Behavioral Science and the School for Cultural & Social Transformation.

“It is with great confidence that I turn the leadership of the College of Science to Pearl Sandick as interim dean,” Trapa said. “She will extend the trajectory of excellence and history of innovation that defines Science at the U.”

The College of Science promotes the importance of basic and applied science and prepares graduates for impactful careers that will help address future challenges, locally, nationally and globally. The college consists of eight academic units and is home to the Science Research Initiative and the Wilkes Center for Climate Science & Policy.

“I’m honored and humbled by the opportunity to serve as interim dean of the College of Science,” Sandick said. “After nearly 14 years in the college, I look forward to supporting our outstanding faculty, staff and students in this new capacity and at this critical moment, as we work together to advance student success, our academic programs and the frontiers of research and innovation.”

 

‘Vast discovery’ of black holes in dwarf galaxies

‘Vast discovery’ of black holes in dwarf galaxies


March 5, 2025
Above:

Using early data from the Dark Energy Spectroscopic Instrument (DESI), a team of scientists, led by University of Utah postdoctoral researcher Ragadeepika Pucha, have compiled the largest sample ever of dwarf galaxies that host an actively feeding black hole, as well as the most extensive collection of intermediate-mass black hole candidates to date.

This dual achievement not only expands scientists’ understanding of the black hole population in the universe but also sets the stage for further explorations the formation of the first black holes to form in the universe and their role in galaxy evolution.

With DESI’s early data, the team was able to obtain an unprecedented dataset that includes the spectra of 410,000 galaxies, including roughly 115,000 dwarf galaxies—small, diffuse galaxies containing thousands to several billions of stars and very little gas. This extensive set would allow Pucha and her team to explore the complex interplay between black hole evolution and dwarf galaxy evolution.

While astrophysicists are fairly confident that all massive galaxies, like our Milky Way, host black holes at their centers, the picture becomes unclear as you move toward the low-mass end of the spectrum. Finding black holes is a challenge on its own but identifying them in dwarf galaxies is even more difficult due to their small sizes and the limited ability of our current instruments to resolve the regions close to these objects. An actively feeding black hole, however, is easier to spot.

“When a black hole at the center of a galaxy starts feeding, it unleashes a tremendous amount of energy into its surroundings, transforming into what we call an active galactic nucleus,” said Pucha. “This dramatic activity serves as a beacon, allowing us to identify hidden black holes in these small galaxies.”

The study is online as a pre-print ahead of publication in The Astrophysical Journal.

Read the full story by Lisa Potter in @ The U.

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Student Stories: Angelina Skedros (biology)

Student Stories: Angelina Skedros, biology

 

When I was 11-years-old, I attended a comparative anatomy summer camp at the University of Utah. One day we toured the Olivera Lab where I saw venomous cone snails for the first time. That moment ignited my passion for science — I knew I wanted to pursue a career in research.

Skedros presenting her research in the Gagnon lab at the annual School of Biological Sciences retreat (2024)

With a family history of U graduates, spanning disciplines from English to medicine, I was eager to follow in their footsteps. Being part of the College of Science has been one of the most fulfilling experiences of my academic journey. I began research in my freshman year through the Science Research Initiative (SRI) and later joined the Gagnon Lab through a more traditional route: approaching Professor Jamie Gagnon after a lecture to request an interview. As a researcher in this lab, I discovered my passion for cell, molecular and developmental biology. My research focuses on DNA, leveraging next generation sequencing technologies to investigate fundamental biological questions. Inspired by my work, I later enrolled in Genes, Development, and Evolution (BIOL 5510) with Professor Mike Shapiro, a course that strengthened my ability to critically analyze scientific literature and apply these skills across disciplines.

Oil, unnamed, 2022 – Angelina Skedros

Beyond research, my role as a College of Science Ambassador has allowed me to engage in science communication and outreach, making my research accessible to a broad audience. Through these experiences, I have developed a deep appreciation for the complexity of cellular processes — how a single cell gives rise to intricate biological systems remains one of the most fascinating questions in science.

After completing my undergraduate degree, I plan to enroll in a post-baccalaureate research program to further develop my skills and refine my research focus. This experience will support my long-term goal of pursuing a Ph.D. and contributing to the scientific community as a research scientist.

My advice to incoming freshmen: go after opportunities, take that interesting class, apply for scholarships, ask for that position. Do it! But also make time for fun. As a STEM student, I learned how to hip-hop, do reformer pilates and made time for backpacking in the desert and oil painting!

by Angelina “Gigi” Skedros


Gigi is a senior honors student from Salt Lake City majoring in biology, with minors in mathematics and chemistry. Do you have questions, ideas or suggestions for other U biology student stories? Contact Tanya Vickers, Communications Editor, School of Biological Sciences, at sbs-media@biology.utah.edu

 

A Climate Moon Shot Beneath Our Feet

a Climate Moon Shot Beneath Our Feet


March 3, 2025
Above: The Utah Frontier Observatory for Research in Geothermal Energy, or FORGE, is an underground field laboratory specifically focused on an emerging field of research and development of geothermal energy.

North Milford Valley, in western Utah, is home to dormant volcanoes, subterranean lava deposits, and smatterings of obsidian—black volcanic glass—that Paiute peoples once collected for arrowheads and jewelry. Scalding groundwater still bubbles to the surface in places.

Joseph Moore

In such a landscape, you remember that the planet’s hard exterior, where we spend our entire lives, is so thin that we call it a crust. Its superheated interior, meanwhile, burns with an estimated forty-four trillion watts of power. Milford was once a lead-, silver-, and gold-mining town, but when I visited the area on a sunny spring morning a scientist named Joseph Moore [research professor in civil and environmental engineering and adjunct professor in the Department of Geology and Geophysics at the University of Utah] was prospecting for something else: heat.

Heat mined from underground is called geothermal — “earth heat,” in ancient Greek — and can be used to produce steam, spin a turbine, and generate electricity. Until recently, humans have tended to harvest small quantities in the rare places where it surfaces, such as hot springs. Moore’s mission, as a geologist at the University of Utah and the project leader of the Frontier Observatory for Research in Geothermal Energy (FORGE), is to “develop the roadmap that is needed to build geothermal reservoirs anywhere in the world.” This road is long, and much of the map remains blank. The biggest problem is drilling miles through hot rock, safely. If scientists can do that, however, next-generation geothermal power could supply clean energy for eons.

During my trip, Moore’s corps of consultants and roughnecks were drilling the fifth borehole of their experimental project. Their rig, armed with a diamond drill bit, towered like a rocket over the rural landscape; miles of solar panels and wind turbines receded into the distance. The hole, which would eventually be L-shaped, was five thousand feet deep, and the team had another five thousand to go, horizontally. But, before they could drill any farther, they needed to install a hundred-and-fifty-ton steel tube in the hole, using special heat-resistant cement to glue it into place. The tube was like a massive straw that was meant to transport hot water and steam from an artificial underground reservoir—without contaminating local groundwater or triggering earthquakes.

At 6:15P.M.on May 3rd, cement had started flowing into the hole. Four hours later, part of the cement folded in on itself. The next morning, the cement supply ran out; the men had miscalculated how much they needed. This brought the three-hundred-million-dollar operation to a maddening halt. Moore, in bluejeans and a FORGE-branded hard hat, called his supplier. The nearest batch of suitable cement was five hundred miles away, in Bakersfield, California. The truck would not arrive until after dark.

Right now, geothermal energy meets less than one per cent of humanity’s electricity and heating needs—a puny, almost irrelevant portion. Fossil fuels power about eighty per cent of human activity, pumping out carbon dioxide and short-circuiting our climate to catastrophic effect. Converts argue that geothermal checks three key boxes: it is carbon-free, available everywhere, and effectively unlimited. Crucially, it is also baseload, which means that, unlike solar panels or wind, it provides a constant flow of energy. Companies and governments have taken notice. “Over the last two years, I have watched this exponential spin-up of activity in geothermal,” Tony Pink, a drilling expert in Houston, told me, in 2023.

But there is a glaring risk of moon shots: often, they miss. “There’s basically zero chance that you’re going to develop a moon-shot technology and have it be commercial in five years, on a large-scale, worldwide,” Mark Jacobson, a Stanford engineering professor and the author of “No Miracles Needed: How Today’s Technology Can Save Our Climate and Clean Our Air,” told me. That’s how long humanity has to lower emissions before climatic devastation, according to his calculations. “There’s a very decent chance you can do that with wind and solar,” he said. Perhaps, when resources and time are finite, trying and failing — or simply taking too long — could be worse than not trying at all.

Read the rest of the story by Brent Crane published in The New Yorkerhere. (Requires setting up an account for limited, trial access.)

Joseph Moore, featured in the story above, was recently honored by the Utah State Legislature for his lifetime of service and dedication to advancing geothermal energy. Read more here.

An emissions tale of two cities: SLC & LA

An emissions tale of two cities: SLC vs. LA


February 28, 2025
Above: John Lin, professor of atmospheric sciences, on the roof of the Browning building where a phalanx of air quality monitoring instruments are stationed. Photo credit: Brian Maffly.

They may both be Olympic host cities, but Salt Lake City and Los Angeles, the major population hubs of their respective states, are many different places. However, they both experience poor air quality and share valley topography that traps pollutants during weather inversions.

 

Utah and Southern California differ sharply in their approaches to this problem, with the latter implementing more stringent regulations and fuel standards aimed at reducing emissions from motor vehicles. New research from the University of Utah, in collaboration with University of California scientists, shows California’s earlier adoption of stricter rules may have helped lower concentrations of one pollutant—carbon monoxide, or CO—on LA freeways.

We wanted to see empirically how emission characteristics have changed in these two cities over time,” said co-author John Lin, a Utah professor of atmospheric sciences. The research was initiated by Francesca Hopkins, a professor of climate change and sustainability at UC Riverside, and conducted with colleagues at UC Irvine.

The study relied on measurements taken by mobile labs that drove up and down LA and Salt Lake freeways for a few weeks in the summers of 2013 and 2019, with follow-up data gathering in Los Angeles over the next two summers to observe the effect of the COVID pandemic.

The study especially focused on the ratios of CO to CO2 (carbon dioxide) observed by the mobile labs.  These two gasses are co-emitted from fossil fuel combustion and their ratio is an indicator of the efficiency of that combustion since efficient internal combustion engines would convert more of the fuel to CO2 instead of CO. The more CO emitted relative to CO2, the less efficiently the fuel is being burned.

Read the full story by Brian Maffly in @ The U.

This story also appeared in KSL.com

Future of Telescope Lenses

The Future of Telescope Lenses


Above: courtesy of the Menon Lab
February 27, 2025

For centuries, lenses have worked the same way: curved glass or plastic bending light to bring images into focus. But traditional lenses have a major drawback—the more powerful they need to be, the bulkier and heavier they become. Scientists have long searched for a way to reduce the weight of lenses without sacrificing functionality.

And while some slimmer alternatives exist, they tend to be limited in their capacity and are generally challenging and expensive to make.

New research from University of Utah engineering professor Rajesh Menon and colleagues at the Price College of Engineering offers a promising solution applicable to telescopes and astrophotography: a large aperture flat lens that focuses light as effectively as traditional curved lenses while preserving accurate color. This technology could transform astrophotography imaging systems, especially in applications where space is at a premium, such as on aircraft, satellites and space-based telescopes.

Their latest study, featured on the cover of the journal Applied Physics Letters, was led by Menon Lab member Apratim Majumder, a research assistant professor in the Department of Electrical & Computer Engineering. Coauthors include fellow Menon Lab members Alexander Ingold and Monjurul Meem, Department of Physics & Astronomy’s Tanner Obray and Paul Ricketts, and Nicole Brimhall of Oblate Optics.

If you’ve ever used a magnifying glass, you know that lenses bend light to make objects appear larger. The thicker and heavier the lens, the more it bends the light, and the stronger the magnification. For everyday cameras and backyard telescopes, lens thickness isn’t a huge problem. But when telescopes must focus light from galaxies millions of light-years away, the bulk of their lenses become impractical. That’s why observatory and space-based telescopes rely on massive, curved mirrors instead to achieve the same light-bending effect since they can be made much thinner and lighter than lenses.

Read the full story by Lexi Hall — intern, College of Engineering