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Extraterrestrial travel is all the rage: Elon Musk's SpaceX has pledged to put the first humans on Mars. Amazon chief Jeff Bezos has his sights set on the moon. And NASA wants to speed up its plan to send astronauts back into deep space.But if these bold plans become reality, what will everyone wear?It's not a minor detail. Without the proper attire, your blood could turn to gas inside your body before your foot hits the sandy surface of the Red Planet.Amy Ross, head of the Advanced Spacesuit and Technology Lab at NASA's Johnson Space Center, is leading development of the next generation of NASA spacesuits. The new prototypes aim to make it easier for the wearer to move around, improving on the puffy white suits that astronauts have worn on spacewalks for decades."That's one of the big differences going forward, is how [good] the mobility of the full body is," Ross told CNN Business. "Our prime objectives, which sounds very Star Trek-y, is to make sure that we're ready with the right tools for spacesuit design to go wherever we might need to go" — whether that's the moon, Mars or somewhere else.The prototypes, called the Z-series, are still in early testing phases. But the end product may not end up looking a whole lot different from its predecessor: It'll probably still be puffy and white, according to Ross."We don't really get to play with how the suits look...[but] we think the suits are beautiful because that's the way they turn out," Ross joked.Give me sci-fi suitsFor flashy commercial space companies, aesthetics can be a bit more important.Companies like Richard Branson's Virgin Galactic want to send tourists who pay top-dollar on short scenic trips to space. Those missions will be suborbital, and the passengers will stay safely inside an air-tight spacecraft — so there's no need to worry about pressurized suits with life support systems.Branson's company 1906

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