Astronauts whose stay on the ISS has been unexpectedly extended are one step closer to home

Astronauts whose stay on the ISS has been unexpectedly extended are one step closer to home
Two astronauts are one step closer to returning to Earth. A SpaceX Dragon carrying a crew of four will dock at the International Space Station later tonight. The crew will replace Butch Wilmore and Suni Williams, who have been in space for more than nine months.
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