Mathematical & Physical Sciences

With lasers and magnets, Shimon Kolkowitz pushes time to new boundaries

May 22, 2025

How do you house equipment so sensitive to external factors that a building’s windows and elevators affect its results? For Shimon Kolkowitz, the Roger Herst Professor of Physics, you spend a year and a half overseeing a state-of-the-art lab renovation that will enable some of the world’s most precise measurements.

The race to perfect the quantum computer is on, and UC is helping America hold its lead

May 16, 2025

Three people in white lab coats peer into a very large, delicate, gold-colored machine.Even if you’ve never set foot inside a physics classroom, you probably have a pretty solid grasp of the laws governing how objects move and behave.

Throw a basketball against a wall and it bounces off. If a coin flipped in San Francisco comes up heads, that won’t cause a coin flipped in Los Angeles to come up tails. If you’re...

In turbulent times, 2025 University Medal finalists excelled through idealism, hard work

May 12, 2025

One is a rising star in space research. One is a structural engineer, inspired by the experience of a devastating earthquake. One is a musician and opera composer, and another already has worked at the highest levels of U.S. politics. All share a common commitment: idealism and uncompromising hard work to make a positive impact in the world.

These traits unite the 2025 finalists for the University Medal — Corina Dunn, Owen Klein, Carlos Quezada and Miya Rosenthal — along with this year’s...

Not one, but two massive black holes are eating away at this galaxy

May 14, 2025

Astronomers have discovered nearly 100 examples of massive black holes shredding and devouring stars, almost all of them where you’d expect to find massive black holes: in the star-dense cores of massive galaxies.

University of California, Berkeley, astronomers have now discovered the first instance of a massive black hole tearing apart a star thousands of light years from the galaxy’s core, which itself contains a massive black hole.

The off-center black hole, which has a mass about 1 million times that of the sun, was hiding in the outer regions of the galaxy’s central...

The key to success for this year’s University Medalist? Curiosity and collaboration

May 12, 2025

From using smartphone data to predict mental health relapses to leading French Club, Asher Cohen found community — and opportunities to serve others — in a myriad of corners of campus.

In the room that Asher Cohen will soon pack up, there’s a corkboard with mementos from his senior year at UC Berkeley: birthday cards, show programs for Carmen and Hamilton and an “I Voted” sticker. In the cabinet next to it is a math calendar a professor gifted him, tiny notebooks with Eiffel Towers that French Club distributed at Cal Day, a medical Spanish textbook, a...

L&S Commencement Highlights from 2024

May 23, 2024
Congratulations, Class of 2024!

This year's campuswide spring ceremony took place on May 11, 2024, at the California Memorial Stadium. Cynthia "Cynt" Marshall, UC Berkeley alumna and CEO of the Dallas Mavericks, delivered this year's commencement address. Despite the backdrop of chants and protests from graduates opposing the war in Gaza, the ceremony largely proceeded as planned. Within the College of Letters & Science, many departments hosted smaller, more...

National Academy of Sciences adds eight from UC Berkeley to its ranks

May 2, 2025

The National Academy of Sciences has added eight UC Berkeley faculty members to its esteemed ranks of scholars and experts who advise governments and other organizations on subjects in academic fields ranging from chemistry and physics to psychology and economic policy.

This year’s election of 120 members and 30 international members recognizes scholars’ distinguished and continuing achievements in original research, the National Academy of Sciences announced Tuesday. Those elected this week bring the...

L&S Staff Honored with 2025 Chancellor's Outstanding Staff Awards

May 1, 2025

event image for Chancellor's Outstanding Staff Awards with a bear statue against a graphic blue background

Five individual staff members from the College of Letters & Science are recipients of the 2025 Chancellor's Outstanding Staff Awards (COSA). One of the highest honors bestowed upon staff by the Chancellor, the COSA awards are presented to individuals who, in addition to performing their normal job duties with excellence, "...

Six UC Berkeley faculty elected to the American Academy of Arts and Sciences

April 29, 2025

Six UC Berkeley faculty members from a diverse range of fields are among nearly 250 newly elected members of the American Academy of Arts and Sciences, the organization announced in a recent press release. The new Berkeley electees include leading experts in mathematics, statistics, computer science, molecular biology, neurobiology and comparative literature.

Since 1780, the academy has honored excellence and convened leaders from across disciplines and divides to examine new ideas, address...

Half of the universe’s hydrogen gas, long unaccounted for, has been found

April 14, 2025

Astronomers tallying up all the normal matter — stars, galaxies and gas — in the universe today have come up embarrassingly short of the total matter produced in the Big Bang 13.6 billion years ago. In fact, more than half of normal matter — half of the 15% of the universe’s matter that is not dark matter — cannot be accounted for in the glowing stars and gas we see.

New measurements, however, seem to have found this missing matter in the form of very diffuse and invisible ionized hydrogen gas, which forms a halo around galaxies and is more puffed out and extensive than astronomers...