Louis Barbier '79 is currently serving as Associate Chief Scientist, NASA Engineering and Safety Center (NESC) and Astropysicist, Astroparticle Physics Laboratory, NASA/GSFC. Barbier's Ph.D. (from L.S.U.) was in high energy particle physics. At Goddard, his research has focused on the origin and evolution of galactic cosmic rays, the study of particle acceleration and transport within the solar system, measurements of the antimatter component of cosmic rays and searches for dark matter. More recently he has been working on Swift - an Explorer mission to study gamma-ray bursts.