Next year, a 3D printer is set to boldly go where no MarketBot or RepRap has gone before — beyond the earth’s atmosphere and aboard the International Space Station (ISS). NASA has approved a custom shoe-box sized 3D printer — which it helped design — for the micro-gravitational conditions of space flight and the environment found on the ISS. But before the 3D printer can actually be shipped into space, it has one more test to pass. Later this summer, NASA and Made in Space — the company that will produce the printer — will take the experimental hardware aboard a final test flight to observe it’s ability to safely handle microgravity.