One of the reasons why man hasn't visited other planets is because it's essentially a one way ticket to eventual suicide. A rocket can get you to Pluto, but how are you going to come back? If 3D printing takes off in space, we could be printing our spaceships to get back to Earth in the future.
Thank you for your loyal readership! And look for our sister site, Blastr, To start reporting more on the world of innovative technology, science and design. Go to Blastr.com now