As exciting as the 3D printing revolution has been here on planet Earth, just imagine the possibilities when NASA can take 3D printing technology to outer space, The Washington Post reports. We’ve already heard about NASA’s plans to support a new initiative to 3D-print food for long, interstellar missions to Mars – there’s also a plan to bring a 3D printer aboard the International Space Station. The debut of the Made in Space 3D printer aboard the ISS in 2014 – the first-ever 3D printer specifically engineered for the zero-gravity conditions of outer space – could unlock the potential of off-planet manufacturing and transform the future of space exploration…