Yuk L. Yung, professor of planetary science and Jet Propulsion Laboratory (JPL) senior research scientist, passed away on March 16, 2026, after a brief illness. He was 79. www.caltech.edu/about/news/c...

Brown dwarfs get a bad rap in the stellar world, often labeled as "failed stars" for their inability to sustain nuclear fusion at their cores. However, Zwicky Transient Facility has discovered a brown dwarf actively funneling matter from its companion. www.caltech.edu/about/news/h...

Scientists at Caltech have figured out how to precisely engineer tiny three-dimensional (3D) metallic pieces with nanoscale dimensions. www.caltech.edu/about/news/e...

Exhaled breath can provide a treasure trove of health information, offering a noninvasive window to both respiratory microenvironments and systemic physiological states. But collecting such data is a challenge. www.caltech.edu/about/news/e...

Alumna Lauren Edgar (PhD '13) has been selected by NASA as one of 10 new astronaut candidates following a competitive selection process involving more than 8,000 applicants from across the United States. www.caltech.edu/about/news/f...

In partnership with researchers at the UN, a team of researchers including Caltech's Hannah Druckenmiller have developed a new model that combines satellite imagery with machine learning to zoom in and capture finer-grained data about populations within countries. www.caltech.edu/about/news/m...

When the densest objects in the universe collide and merge, the violence sets off gravitational waves that reverberate across space and time over hundreds of millions and even billions of years. www.caltech.edu/about/news/g...

Caltech scientists have developed a method that detects tiny, imperceptible movements at the surface of objects to reveal details about what lies beneath. www.caltech.edu/about/news/u...

Some of the oldest zircon crystals are 4.4 billion years old. Now, a new Caltech study examines these most ancient zircon grains and discovers evidence for two key findings. www.caltech.edu/about/news/a...

A Caltech-led team of biochemists has homed in on an underexplored small transporter called MurJ that is a vital part of the pathway bacteria use to build their chain-mail-like cell wall. www.caltech.edu/about/news/f...

Scientists at Caltech and Princeton University have now shed fresh light on why antibiotics that work well in laboratory tests often fail against real infections in humans. www.caltech.edu/about/news/j...

Jean-Laurent Rosenthal's latest book explores French wealth, and its distribution, using data from nearly two centuries of bequest records. www.caltech.edu/about/news/t...

A trio of Caltech faculty members have been selected to receive the 2026 Sloan Research Fellowship: Elias Most, Huy Tuan Pham, and Lingfu Zhang. www.caltech.edu/about/news/t...

A new study presents a roadmap for simultaneously combining data on the abundance of greenhouses gases with data on winds to better pinpoint emission sources. www.caltech.edu/about/news/n...

Brian Stoltz, the Victor and Elizabeth Atkins Professor of Chemistry and Heritage Medical Research Institute Investigator, has been awarded this year's Shirley M. Malcom Prize for Excellence in Mentoring. www.caltech.edu/about/news/b...

Sarah Reisman, Bren Professor of Chemistry and Norman Davidson Leadership Chair of the Division of Chemistry and Chemical Engineering, has been awarded this year's Richard P. Feynman Prize for Excellence in Teaching, Caltech's highest teaching prize. www.caltech.edu/about/news/s...

Scientists sifting through archival data captured by NASA's former NEOWISE mission found an unusual star that quickly disappeared, fading to nothing more than a wispy shell. www.caltech.edu/about/news/t...

The planets in our solar system grew out of a disk of material that swirled around our Sun. Inner rocky planets formed as tiny grains stuck together, becoming pebbles, then boulders, and, ultimately, full-grown planets. www.caltech.edu/about/news/a...

Caltech's Joseph E. Shepherd (PhD '81) and Shouleh Nikzad (PhD '90), chief technologist at NASA's Jet Propulsion Laboratory (JPL), have been elected to membership in the National Academy of Engineering (NAE). www.caltech.edu/about/news/s...

Earth's biosphere is brimming with symbiotic relationships: from bacteria that became our cells' mitochondria, to mycorrhizal fungi that help plants grow, to the myriad mites, wasps, worms, and flies that make a living by parasitizing other animals. www.caltech.edu/about/news/b...

George Rossman (PhD '71), professor of mineralogy, emeritus, passed away on February 6, 2026. He was 81. Rossman will be remembered for his contributions to education at Caltech, which spanned 55 years and impacted thousands of students. www.caltech.edu/about/news/c...

Caltech scientists have developed a way to guide light on silicon wafers with low signal loss approaching that of optical fiber at visible wavelengths. www.caltech.edu/about/news/e...

The best features I've done for @caltech.edu tend to highlight not a particular discovery but the often quirky and very particular culture of science. Like the how and why of naming a newfound mineral: magazine.caltech.edu/post/mineral...

Can we reimagine the way we power modern life? On Wednesday, February 25, 2026, Kimberly See, professor of chemistry, will discuss her group's research on next-generation battery chemistry that may lead to more efficient and sustainable ways of energizing the world. www.caltech.edu/about/news/w...

#OTD 40 years ago, IPACers moved to @caltech.edu campus! This memo details the move to IPAC (the Morrisroe building) the week of February 3rd, 1986. Before moving, IPACers worked in an office building on Lake Avenue, a few blocks from Caltech. #IPAC40 🔭

I’m proud to represent @caltech.edu, where researchers are connecting ideas from physics and economics to better understand complex systems. Excited to see this latest breakthrough and grateful for the innovation happening in our district every day. pasadenanow.com/main/economi...

Astronomers have, for the first time, captured a gallery of detailed snapshots of planetary systems during their "teenage years," an era long shrouded in mystery. www.caltech.edu/about/news/d...

The team of Caltech and USC scientists describe the bubble bots and their successful application in treating bladder tumors in mice in a paper that appears in the February 2 issue of the journal Nature Nanotechnology. www.caltech.edu/about/news/b...

Fourth-year mathematics undergraduate Akshar Ramkumar has been selected as one of 16 recipients of the Churchill Scholarship, which provides funding for a one-year master's degree at the University of Cambridge. www.caltech.edu/about/news/a...

Scientists from Caltech and USC have developed a new technique that can quickly provide 3D color images that capture both the structure of soft tissues and details of how the blood vessels are functioning. www.caltech.edu/about/news/b...

Michael M. Watkins, professor of aerospace and geophysics, has been appointed the new director of the Keck Institute for Space Studies(KISS). www.caltech.edu/about/news/k...

Caltech researchers have invented a new technology to write long sequences of DNA with groundbreaking accuracy. www.caltech.edu/about/news/i...

Caltech researchers have invented a new technology to write long sequences of DNA with groundbreaking accuracy. www.caltech.edu/about/news/i...

Jonas Zmuidzinas (BS '81), the Merle Kingsley Professor of Physics at Caltech, will receive the 2026 James Craig Watson Medal, a National Academy of Sciences honor presented every two years for "outstanding contributions to the science of astronomy." www.caltech.edu/about/news/c...

Congratulations to Adam Wierman, Carl F Braun Professor of Computing and Mathematical Sciences, on being named a 2025 ACM Fellow. awards.acm.org/fellows

Jonas Zmuidzinas (BS '81), the Merle Kingsley Professor of Physics at Caltech, will receive the 2026 James Craig Watson Medal, a National Academy of Sciences honor presented every two years for "outstanding contributions to the science of astronomy." www.caltech.edu/about/news/c...

A new study, which draws on survey data from approximately 3,000 respondents in the United States and Canada, finds that women, on average, exhibit greater skepticism toward artificial intelligence (AI) technologies than men. www.caltech.edu/about/news/n...

Shri Kulkarni, the George Ellery Hale Professor of Astronomy and Planetary Science, has been awarded the Gold Medal of the Royal Astronomical Society, the highest honor from the organization, awarded annually since 1824. www.caltech.edu/about/news/c...

A team of scientists led by alumni-founded company Asari AI with researchers from Caltech and MIT, developed a new framework that enables programmers to improve their agent to quickly recover from errors without rewriting the core logic of their agent. www.caltech.edu/about/news/h...

Answering a challenge from collaborating cancer specialists, Lihong Wang has pioneered a means of analyzing excised tissues during surgery itself with the help of AI, permitting surgeons to continue removing tissue as necessary until all the cancer is gone. www.caltech.edu/about/news/i...

Brent Minchew, Caltech professor of geophysics, discusses how we might prevent sea-level rise.

As our community grappled with loss and uncertainty after the 2025 Los Angeles fires, researchers jumped into action, collecting data as soon as flames erupted. In this podcast series, scientists and engineers lend their expertise and answer questions. scienceexchange.caltech.edu/connect/afte...

One year after the 2025 Los Angeles fires, Caltech researchers are pressing forward with research projects to provide answers in service of public health and safety.

It is our great privilege to announce today the appointment of Ray Jayawardhana, a renowned astrophysicist, accomplished academic leader, and award-winning author, as the tenth president of Caltech. www.caltech.edu/about/news/r...

Please join us tomorrow at 11 a.m. on campus or online for the naming of Caltech’s next president! www.caltech.edu/campus-life-...

A new Caltech-led study provides the most detailed picture to date of how the Hollywood Basin responds to groundwater usage, revealing that current estimates of sustainable groundwater yield may be too high. www.caltech.edu/about/news/s...

$50 million commitment to Caltech endows and names the Lynn Booth and Kent Kresa Department of Aerospace, securing the Institute's leadership in the rapidly evolving sectors of space science and exploration. Read more: bit.ly/456iTZt

Led by researchers at NASA's Jet Propulsion Laboratory, which Caltech manages for NASA, and published in the journal Nature, the new study could have implications for scientists' understanding of Titan and other icy moons throughout our solar system. www.caltech.edu/about/news/s...

Astronomers are reporting evidence for a possible second kilonova event, but the case is not closed. In fact, this situation is much more complex. www.caltech.edu/about/news/p...