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Astronauts Could Take Unexpected Spacewalk Before Christmas

Talk about a holiday road trip.

Next week, astronauts could be taking an unexpected spacewalk thanks to a broken railcar that became stuck on the outside of the International Space Station.

The spacewalk could take place on Monday or Tuesday, Rob Navias, a spokesperson for NASA's Johnson Space Center, told NBC News.

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If NASA decides the mission is safe, astronauts Scott Kelly and Timothy Kopra would venture into space to manually release the brake of the Mobile Transporter, which moves across the exterior of the ISS on a truss to transport people and equipment.

The Mobile Transporter became stuck on Wednesday night, only four inches from a "work site" that would allow it to latch onto the ISS and aid with the docking of a Russian resupply mission that is expected to arrive on December 23.

"We don't believe this is a particularly complicated task," Navias told NBC News. NASA will make its final decision on Sunday, he said.

If Kopra goes on the spacewalk, he will have wasted no time getting to work since he arrived on the ISS on Tuesday. He traveled aboard a Soyuz rocket along with Russian astronaut Yuri Malenchenko and Tim Peake, the first British astronaut to visit the ISS, who tweeted about his first meal on the space station.

Sadly, the astronauts can't simply send R2-D2 to fix the Mobile Transporter for them. They will, however, get to watch the newly released "Star Wars: The Force Awakens" ... eventually.