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. The Westphal group uses some of the most sophisticated x-ray, electron-beam and ion-beam instruments on the planet to study ultra-primitive extraterrestrial materials that contain clues about the earliest history of the solar system. Dr. Westphal recently led an international consortium of more than 60 scientists that announced the discovery of seven particles of likely interstellar origin, returned in the Interstellar Dust Collector of the Stardust spacecraft.