"This test confirms that the Falcon 9 booster is able consistently re-enter from space at hypersonic velocity, restart main engines twice, deploy landing legs and touch down at near-zero velocity," SpaceX representatives wrote in a July update about the onboard camera video.
SpaceX lofted six commercial satellites into orbit on July 14, before performing the flyback test with the Falcon 9. The California-based private spaceflight company has been mounting these tests to help it make reusable rockets a reality in the future.
Elon Musk, the company's billionaire CEO and founder, believes that reusable rockets could cut the cost of access to space by as much as a factor of 100. He thinks that these kinds of innovative ideas could make manned exploration, and even colonization of Mars, a viable economic possibility.
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SpaceX has attempted three first-stage Falcon 9 returns after launches. The first happened in September 2013, and the second occurred in April, after the company sent its unmanned Dragon capsule on its way to deliver cargo to the International Space Station.