2014年10月30日 星期四

Are Old Engines Good For New Rockets?

40-Year-Old Russian Engine at Heart of Rocket Investigation "The thing to keep in mind in all this is that we don't know what caused the mishap," Cowing cautions. "We all saw the explosion at the bottom of the rocket, but...



from NASA Watch http://nasawatch.com/archives/2014/10/are-old-engines.html

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