July 16, 2018

Directory of Researchers

Photo of Carl Pennypacker

Carl Pennypacker

Carlton R. Pennypacker is an astrophysicist at the University of California, Berkeley and the Lawrence Berkeley Laboratory and is the principal investigator for the Hands On Universe project. Read More…

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Tai Phan

Senior Fellow

Tai Phan received his Ph.D. from Dartmouth College in 1991. He worked at the Max-Planck Institute for Extraterrestrial Physics in Germany and at the National research Council of Canada before joining the Space Sciences Laboratory at UC Berkeley, where he is currently a Senior Fellow. Read More…

Photo of Andrew R. Poppe

Andrew R. Poppe

Assistant Research Scientist

Dr. Poppe is currently an Assistant Research Scientist at the Space Sciences Laboratory at the University of California at Berkeley. Andrew works in the Space Physics Research Group (SPRG) on a variety of space-related research projects. Read More…

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Marc Pulupa

Research interests include: plasma astrophysics, collisionless shocks, electron acceleration, Langmuir waves, electric field antenna modeling, solar wind electron thermodynamics, collisionless reconnection, solar radio bursts, development of spacecraft instrumentation.

Roger Roglans

PhD Student Researcher

Photo of Pascal Saint-Hilaire

Pascal Saint-Hilaire

Dr. Saint-Hilaire is an Assistant Research Physicist at the Space Sciences Laboratory (SSL) of the University of California in Berkeley. Since his arrival in Berkeley in 2005, he has been part of the NASA Ramaty High Energy Solar Spectroscopic Imager (RHESSI) science and operations team. Read More…

Photo of Chadi Salem

Chadi Salem


Photo of Oswald Siegmund

Oswald Siegmund

Full Res Assoc Director

Oswald has worked at SSL since receiving his Ph.D. at The University College London in 1982. His initial work was in developing the Extreme Ultraviolet Explorer satellite payload sensor instrumentation. Read More…

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David Sundkvist

Photo of John Tomsick

John Tomsick

Research Scientist

Since 1994, John has been working in astrophysics, including observations and instrumentation, at Columbia University, UC San Diego, and UC Berkeley. John’s primary work is to use X-ray and multi wavelength observations as a probe of the regions of strong gravity near accreting black holes and neutron stars. Read More…

Photo of Yuguang Tong

Yuguang Tong

PhD Student Researcher

I am a physics PhD student working in Professor Bale’s group. I work on a few different topics about electrons and waves. I am particularly interested in wave particle interactions concerning electron energy transport, electron measurements by electric antennas and, observation of nonlinear structures in space plasmas. Read More…

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Pavel Travnicek

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Anton Tremsin

Associate Researcher

Dr. Anton S. Tremsin (Ph.D.- applied physics), now is a Full Researcher at the Space Sciences Laboratory, University of California at Berkeley. He got his B Sc and M Sc in 1989 in physics at Moscow Institute of Physics and Technology and Ph.D. Read More…

Photo of John Vallerga

John Vallerga

Full Research Physicist

Dr. John Vallerga is an astrophysicist at the Space Sciences Laboratory, University of California, Berkeley. He specializes in the development of sensitive photon imaging detectors for astronomical telescopes, both in space and on the ground. Read More…

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Ivan Vasko

Photo of Brian Welsch

Brian Welsch

Assistant Research Physicist

Photo of Barry Welsh

Barry Welsh

Full Research Astronomer

My research interests are in high resolution spectroscopy of the local interstellar medium (ISM) and the
detection of exocomets. Recent publications include a 3-D map of the LISM to 300pc around the Sun,
and the discovery of over 20 new stellar systems that show evidence for the evaporation of gas from exocomets
as they fall towards a central star.

Photo of Kees Welten

Kees Welten

Associate Research Chemist

Kees Welten got his PhD from the Department of Physics and Astronomy, Utrecht University, Netherlands. From 1995-1997, he was an NRC postdoctoral fellow at NASA Johnson Space Center, Houston. Read More…

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Dan Werthimer

SETI Project Director

Dan Werthimer is the Alberts SETI Chair and chief scientist of SETI@home, the Berkeley SETI Research Center, the Breakthrough Listen project,  and the Center for Astronomy Signal Processing and Electronics Research (CASPER). Read More…

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Andrew Westphal

Research Physicist

Andrew Westphal is a Research Physicist and Senior Space Fellow at the Space Sciences Laboratory at U. C. Berkeley. He got his PhD at Berkeley in 1992 in high-energy astrophysics, and now works on the interface between planetary science and astrophysics. Read More…