Distributia
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Jay TaylorHimself - Narrator (voice)
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Daniel LathropHimself - University of Maryland (as Prof Daniel P Lathrop)
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Arwen DeussHerself - University of Cambridge (as Dr Arwen Deuss)
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Bill RoggenthenHimself - South Dakota School of Mines (as Dr Bill Roggenthen)
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Richard AsterHimself - New Mexico Institute of Mining (as Prof Richard Aster)
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Ken LaBelHimself - NASA Goddard Space Flight Center
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Jack ConnerneyHimself - NASA Goddard Space Flight Center (as Dr Jack Connerney)
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Dave StevensonHimself - Caltech (as Prof Dave Stevenson)
