On Saturday, the Kennedy Space Center is playing host to a launch by technology entrepreneur Elon Musk's SpaceX.
The Falcon 9 rocket's highly anticipated voyage is the latest symbol of how commercial space flight is firing up the public's imagination, and taking extraterrestrial exploration to the next level.
Not to be outdone by SpaceX, however, are two companies that lack Musk's star power but have become active players in a new space race that many observers speculate will become the next major source of wealth creation.
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