Hawthorne, Calif.-based Space Exploration Technologies (SpaceX) is a commercial company aiming to launch cargo, and eventually people, to low-Earth orbit. The firm is developing its Dragon capsule and Falcon 9 booster under contracts from NASA's Commercial Crew Development (CCDev) program and its Commercial Orbital Transportation Services (COTS) program.
SpaceX rolled a preflown Falcon 9 first stage into a hangar at NASA's Kennedy Space Center in Florida on Saturday (June 3) — the same day that a (completely new) Falcon 9 launched a used SpaceX Dragon cargo capsule.
NASA is comfortable with used SpaceX spacecraft, at least on uncrewed cargo flights. And it's now entertaining the possibility of going with used Falcon 9s on future resupply missions as well, agency officials said.
SpaceX made history on June 3, 2017 when it launched a used Dragon cargo craft to the International Space Station for the first time. See images of the liftoff, and the successful landing of the company's Falcon 9 rocket, here.