137 SpaceX Successful Launch First Reusable Rocket To The ISS
This is the first time NASA has approved the use of a previously flown rocket booster on a mission to the space station; this one flew to space for the first time in June 2016. The US space agency has allowed SpaceX to fly recovered Dragon spacecraft back the lab before, and the vehicle on this mission is also a veteran, having made the trip to 254 miles (408 km) in altitude on a 2015 mission.
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