Astrophysics Theorist

If You Want to Go Far, Go Together: Professor Ben Safdi

January 3, 2025

Benjamin Safdi

Associate Professor Benjamin Safdi

Studying the physics of atomic particles takes a lot of room. The Large Hadron Collider at CERN, the biggest particle accelerator, is in a ring tunnel 27km (17 miles) long buried about two football fields deep underground. It serves as the factory, or artisanal manufacturer, of bespoke subatomic particles like quarks. But where is the design studio for these...

Closest supernova in a decade reveals how exploding stars evolve

August 29, 2023

Galaxies in space

The Pinwheel Galaxy, or Messier 101, on May 21, 2023, four days after the light from the supernova 2023ixf reached Earth.

Alex Filippenko is the kind of guy who brings a telescope to a party. True to form, at a soiree on May 18 this year, he wowed his hosts with images of star clusters and colorful galaxies — including the dramatic spiral Pinwheel Galaxy — and snapped...

A nearby supernova could end the search for dark matter

November 21, 2024

A highly magnetized neutron star

An artist's concept of a highly magnetized neutron star. According to current theory, axions would be created in the hot interior of the neutron star. UC Berkeley astrophysicists say that the strong magnetic field of the star will transform these axions into gamma rays that can be detected from Earth, pinpointing the mass of the axion. Image: Casey Reed, courtesy of Penn...

Martin White

Professor

Martin White received his B.S. in 1988 from the University of Adelaide and his Ph.D. in 1992 from Yale. After postdoctoral positions at the CfPA in Berkeley and an Enrico Fermi Fellowship in Chicago he became Assistant Professor of Physics and of Astronomy at UIUC. In 1998 he became an Assistant Professor of Astronomy at Harvard before moving to Berkeley as a Professor of Physics in 2001.

Research Interests

I am a theorist and phenomenologist. While I originally trained in Particle Physics, in the last few years my interest has centered around the question of the formation of...

Christopher McKee

Professor Emeritus

Chris McKee received his Ph.D. in Physics from UC Berkeley in 1970. After a brief stay at Lawrence Livermore National Laboratory, he spent a year as a postdoc at Caltech. He then went to Harvard as an assistant professor of astronomy for three years, and in 1974 he joined the Physics and Astronomy Departments here at Berkeley. He served as the first Director of the Theoretical Astrophysics Center in 1985, and from 1985-1998 he directed the Space Sciences Laboratory. He was the Henry Norris Russell Lecturer of the American Astronomical Society in 2016 and appointed a Legacy...

Dan Kasen

Professor

Prof. Kasen received his B.S. from Stanford University and his M.S. and Ph.D. in physics from UC Berkeley. Prior to returning to Cal, he was the Alan C. Davis fellow at Johns Hopkins University and a Hubble fellow at UC Santa Cruz. He joined the Berkeley physics faculty in 2010, jointly appointed with the nuclear science division at LBNL.

Liang Dai

Assistant Professor and The Michael M. Garland Chair in Physics

Prof. Dai received a B.S. in Physics from Peking University in 2011. Later on, he earned his Ph.D. in Physics from the Johns Hopkins University in 2015 working on theoretical cosmology. From 2015 to 2018, he was awarded an NASA Einstein fellowship and was appointed a postdoctoral Member at the Institute for Advanced Study in the School of Natural Sciences. From 2018 to 2020, he was a long-term John Bahcall postdoctoral fellow at the Institute for Advanced Study, before he joined the faculty in the Department of Physics at the University of California, Berkeley.

Research Interests

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Benjamin Safdi

Associate Professor

Benjamin Safdi received his undergraduate degree from the University of Colorado at Boulder, a Master of Advanced Study from Cambridge University, as a Churchill Scholar, and his PhD from Princeton University in 2014. He was then a Pappalardo Fellow in physics at the Massachusetts Institute of Technology until 2017, when he started as an assistant professor at the University of Michigan, Ann Arbor. Dr. Safdi moved to LBNL in 2020 and then to UC Berkeley in 2021. He received the Department of Energy Early Career Award in 2018 and the IUPAP C11 Young Scientist Prize in Particles and Fields...

Raphael Bousso

Professor and The Chancellor's Chair in Physics

Raphael Bousso received his Ph.D. from Cambridge University in 1998 and went on to become a Postdoc at Stanford University. He also worked at the Kavli Institute for Theoretical Physics in Santa Barbara. In 2002/03 he was a fellow at the Harvard University physics department and the Radcliffe Institute for Advanced Study. In July 2003 he joined the physics department at UC Berkeley.

Research Interests

My interests are in theoretical cosmology and quantum gravity.

The central principles of quantum mechanics and of general relativity (our classical theory of gravity) come into...

Bright gamma ray burst confounds models of black hole birth

March 28, 2023

Diagram of a gamma ray emission emerging from a black hole showing the different types of energy in the afterglow

Last October, following one of the brightest flashes of gamma rays ever observed in the sky, telescopes around the world captured a wealth of data from an event that is thought to herald the collapse of a massive star and the birth of a black hole.

But that fire hose of data demonstrated clearly that...