Space Exploration Technologies -- or SpaceX, as it is usually called -- took a key step toward providing support for NASA and advancing private space travel on Monday: It successfully launched a small satellite into orbit atop its Falcon 1 rocket. It was a first for the company, which has been making significant strides in private space flight since its founding in 2002 by Elon Musk, cofounder of PayPal. "This is a big step for SpaceX," said John Gedmark, executive director with the Commercial Spaceflight Federation.

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