human spaceflight participants

Broadcast 2900 Robert Walker

Guest:  Robert Walker: Topics:  Spaceflight safety, risk vs. reckless, spaceflight participant regulations, planetary missions, space mining and more.  Please direct all comments and questions regarding specific Space Show programs & guest(s) to the Space Show blog which is part of archived program on our website,   Comments and questions should be relevant to the specific Space Show program.

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