SpaceX's first Falcon 9 rocket launching toward the International Space Station ignites its nine main engines briefly in this NASA photo shortly before aborting the launch try on May 19, 2012 due to ... more 
SpaceX's first Falcon 9 rocket launching toward the International Space Station ignites its nine main engines briefly in this NASA photo shortly before aborting the launch try on May 19, 2012 due to an unexpected engine sensor reading. The Falc less 
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SPACE.com | Photo By NASA
Sun, May 20, 2012 10:24 AM EDT