2014年11月5日 星期三

Rising Above Tragedy - It Has Happened Before

Past Transit Tragedies Point to a Way Forward for Virgin Galactic, Smithsonian "Private spaceflight hit a large bump in the road to orbit last week, with Orbital Sciences' rocket explosion followed days later by Virgin Galactic's fatal spaceplane crash. But...



from NASA Watch http://ift.tt/1sgIN0V

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