The Falcon 9 was developed by Elon Musk’s SpaceX to be the first orbital-class rocket capable of launching multiple missions, as a way to drive down costs, and SpaceX made history in 2017 by launching the same rocket for a second time.
The rocket used in Sunday’s launch of a US National Reconnaissance Office security payload was the same one that launched an NRO payload in February, according to the office.
SpaceX has now re-flown boosters and spacecraft dozens of times on satellite and cargo launches, but last year it used reused hardware for a mission including astronauts, marking the first time the company had done so on a crewed mission.
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