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Human Spaceflight
As the final mission of the Space Shuttle approaches, a feeling of sadness and regret hangs over the National Aeronautics and Space Administration. Despite protestations by senior political appointees that the space agency has an exciting future, most of us sense it isn't so. NASA's signature
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Date:
7/6/2011
My critical commentary on commercial launch provider SpaceX appearing at Forbes.com last week attracted 11,000 readers and a handful of outraged responses from company supporters. I have followed up with a second commentary this week focusing on how SpaceX's track record compares with that of more
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Date:
5/31/2011

