SpaceX launches rescue mission for 2 Nasa astronauts stuck in space

SpaceX launched a rescue mission for the two stuck astronauts at the International Space Station on Saturday, sending up a downsized crew to bring them home but not until next year.

The capsule rocketed into orbit to fetch the test pilots whose Boeing spacecraft returned to Earth empty earlier this month because of safety concerns. The switch in rides left it to Nasa's Nick Hague and Russia's Alexander Gorbunov to retrieve Butch Wilmore and Sunita Williams.

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Since Nasa rotates space station crews approximately every six months, this newly launched flight with two empty seats reserved for Wilmore and Williams won't return until late February. Officials said there wasn't a way to bring them back earlier on SpaceX without interrupting other scheduled missions.