This image taken from a SpaceX video shows the launch of the Polaris Dawn mission on a Falcon 9 rocket from the Kennedy Space Center in Cape Canaveral, Fla., early Tuesday.
A crew of four private astronauts ascended into space early Tuesday on a risky SpaceX mission to attempt the first-ever private spacewalk using the company's new spacesuits and a redesigned spacecraft.Thomson Reuters A crew of four private astronauts ascended into space early Tuesday on a risky SpaceX mission to attempt the first-ever private spacewalk using the company's new spacesuits and a redesigned spacecraft.
The first U.S. spacewalk was in 1965, aboard a Gemini capsule, and used a similar procedure to the one planned for Polaris Dawn: the capsule was depressurized, the hatch opened and a spacesuited astronaut ventured outside on a tether. Astronauts for the mission are, from left to right, mission specialist Anna Menon, pilot Scott Poteet, commander Jared Isaacman and mission specialist Sarah Gillis, shown on Aug. 19 at Cape Canaveral, Fla.
The four-person crew are effectively test subjects for an array of scientific experiments that will aim to shed light on how cosmic radiation and the vacuum of space affect the human body, adding to decades of studies on astronauts living aboard the ISS.Since the retirement of the Space Shuttle in 2011, NASA has relied heavily on the company and its Crew Dragon, which has flown nine astronaut missions to and from the ISS for the agency as the only U.S. crew-grade vehicle in operation.
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