05:36NASA Human Spaceflight Future on Right Path?
From the creator
Apollo astronauts Neil Armstrong and Eugene Cernan, Fmr. NASA admin. Michael Griffin and the GRAIL mission's Dr. Maria Zuber give their spirited opinions and the moonwalkers share their advice. Highlights from the congressional hearing on 9/22/11.
Published 2011-09-23 · Watch on YouTube ↗
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