Gerhard Schwehm, Rosetta Mission Manager, Head of Planetary Science Division, European Space Agency, discusses the making of Rosetta from the dream of a comet-nucleus sample-return mission to a comet orbiter and lander mission during the Caltech Space Challenge (September 12, 2011).

Ron Turner, Analytic Services Inc. Fellow, discusses radiation risks and challenges associated with a human mission to an asteroid during the Caltech Space Challenge (September 12, 2011).

Don Yeomans, Senior Research Scientist and JPL Fellow, Manager Near Earth Object Program Office, NASA - JPL, discusses why to go to a Near Earth Object during the Caltech Space Challenge (September 12, 2011).

Arizona State University's Paul Scowen discusses UV spectroscopy/imaging and science questions in this short course (August 29, 2011).

Michael Hoenk and Frank Greer from JPL discuss what is on the surface in this short course (August 29, 2011).

Nai-Chang Yeh from Caltech and Doug Bell from JPL discuss nanotechnology and its relevance to UV science in this short course (August 29, 2011).

Kevin France, Chris Martin, Bruce Woodgate, Amanda Hendrix, Hakeem Olusheyi, and Wes Traub participate in a panel discussion on UV/optical science as part of this short course (August 29, 2011).

Washington University's Ray Arvidson discusses remote sensing of Mars in this short course (June 20, 2011).

The Jet Propulsion Laboratory's Robert C. Anderson discusses Mars surface analogues on Earth - mechanical properties of regoilth in this short course (June 20, 2011).

Caltech's Jose Andrade gives an intro to soil mechanics in this short course (June 20, 2011).