NASA narrows the field for rocket makers

Four finalists are announced in the contest to receive $175M for space transport development.

In early February, $175 million in public funds will be handed over to a small handful of spaceship developers, with the goal of making demonstration flights to the international space station and back. NASA has now narrowed the field of competitors: from an original batch of submissions in 2006, four companies are finalists.

NASA's Commercial Orbital Transportation Services (COTS) exists to encourage privately-operated companies to create "space transportation systems" for transporting cargo and astronauts.

Find out who they are on MSNBC:Finalists picked for second spaceship contest

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    Emily Shurr is CNET News.com general-assignment news producer.

     

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