Marc Rayman is chief engineer and mission director of the Dawn Mission at Jet Propulsion Laboratory in Pasadena, California.
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9:03
Dawn Arrives at Ceres
Mission director and chief engineer Marc Rayman gives an update on the Dawn mission, scheduled to arrive in orbit around dwarf planet Ceres this week.
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17:18
Journeying to the Building Blocks of the Solar System
What can comets, asteroids, and protoplanets tell us about the formation of the solar system?