What happens when you're 220 miles above Earth on the International Space Station and you need a tool you don't have? You can print one yourself. In 2014, American astronauts for the first time printed a tool -- a ratchet wrench -- using a design file sent from NASA on the ground to the 3D printer spinning about in space. The feat was straight of visions of
Star Trek's replicator -- and it was only the first step to much larger miracles in space. Here's what's happening now and how 3D printing is changing the future of space travel.
from TechNewsWorld http://ift.tt/1LMW1SO
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