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polaris dawn
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A billionaire and an engineer have completed the first private spacewalk. But this isn’t just a vanity project
Gail Iles, RMIT University Two astronauts have carried out the first-ever commercial spacewalk, using new less-bulky spacesuits designed…
Space travel comes with risk − and SpaceX’s Polaris Dawn mission will push the envelope further than any private mission has before
Spacewalks are among the more dangerous activities associated with human spaceflight. Ignatiev/E+ via Getty Images Chris Impey, University…