Accepting the Challenge Before Us Testimony of Dr. Robert Zubrin to the Committee for Review of U.S. Human Space Flight (Norm Augustine, Chairman) August 5, 2009

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Date: 2013-04-30 20:24:15 Space colonization Mars exploration Mars Mars Direct Manned mission to Mars Robert Zubrin Exploration of Mars Mars Society Shuttle-Derived Launch Vehicle Spaceflight Space technology Human spaceflight		Accepting the Challenge Before Us Testimony of Dr. Robert Zubrin to the Committee for Review of U.S. Human Space Flight (Norm Augustine, Chairman) August 5, 2009 Add to Reading List Source URL: www.nasa.gov Download Document from Source Website File Size: 187,27 KB Share Document on Facebook

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