A Falcon 9 SpaceX rocket stands ready for a sunset launch from complex 40 at the Cape Canaveral Air Force Station in Cape Canaveral, Fla., on Sunday. It will be carrying aloft the DSCOVR satellite. John Raoux/AP hide caption

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In an image provided by NASA, astronaut Randy Bresnik prepares to enter Boeing's CST-100 spacecraft for an evaluation at the company's Houston Product Support Center. NASA awarded Boeing with a $4.2 billion contract Tuesday. AP hide caption

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Atlas V (left); Falcon 9 (right) ULA; SpaceX hide caption

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The Two-Way

Rocket Wars: Will A Suit By SpaceX Get Off The Ground?

The California-based maker of the Falcon 9 is hoping to break up a monopoly on the launch market for national security satellites.

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Elon Musk's "Hyperloop" vehicle. Elon Musk hide caption

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