NASA has successfully tested the first-ever 3-D-printed rocket component.

The U.S. Space Agency and Aerojet Rocketdyne tested a rocket engine injector made through 3-D printing, opening the doors to cheaper and more efficient space travel.

NASA said this space technology could eventually save companies time and money, as this 3-D-printed part cut the costs it would have normally taken to produce the same part without 3-D printing technology by 70 percent.

The European Space Agency proposed a 3-D-printed moon base »