Dr. Marc Rayman is not only a top rocket scientist at NASA's Jet Propulsion Laboratory but also a magnificent communicator. He is currently the chief engineer and mission director for Dawn, the first spacecraft ever targeted to orbit two extraterrestrial destinations, the giant protoplanet Vesta and dwarf planet Ceres. Marc combined his extensive training in physics with his lifelong study and passion for the exploration of space by joining JPL shortly after receiving his doctorate. His work there has spanned a broad range of planetary and astrophysics missions, including Deep Space 1 (DS1) and the Spitzer Space Telescope, as well as the development of interplanetary laser communications. One of Marc's favorite hobbies is learning about the space activities of all space-faring nations. He has built an extraordinary personal collection of information (and memorabilia) from over 40 nations, featured in an amusing video tour geared for space buffs. He is very active in outreach, instilling in the public the power of science and the thrill and wonder of interplanetary adventures through his acclaimed DS1 and Dawn blogs and his popular public speaking. (Source: The Space Show)