SpaceX debuted the last major upgrade of the Falcon 9 rocket in a successful launch on May 11. But it has yet to demonstrate that a critical system in the redesigned rocket is safe enough to carry astronauts to the International Space Station for NASA.
Before the launch, SpaceX CEO and chief designer Elon Musk told reporters he believed that the new Falcon 9 met NASA’s stringent criteria for flying humans into space, but that he “could be mistaken.” Indeed, the vehicle that flew last week—which is designed to fly 10 times in a row with minimal refurbishment—still wasn’t in “crew configuration.” It lacked an upgrade to advanced high-pressure vessels that worry NASA safety advisors and took the blame for the launchpad explosion of a Falcon 9 in 2016 during fueling.
While the data derived from the May 11 launch will be used to demonstrate the vehicle’s capabilities and safety to NASA, SpaceX will still need to fly the rocket seven more times with the new tanks integrated and in “crew configuration” before the agency will certify it to carry astronauts.
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SpaceX told Quartz that the new vessels are now ready to go for an uncrewed demonstration mission scheduled in August. In 2017, the company launched eight rockets in the final five months of the year. It’s aiming for a faster cadence in 2018—so barring a rocket failure, SpaceX should have seven opportunities before its targeted crewed flight in December 2018.