This new propulsion system could rewrite the rules of spaceflight—not to mention completely defy conventional physics.

An engineer who once worked with NASA says he has built a machine that can push against gravity without burning a drop of ...

Placing a mass driver on the moon has long been a dream of space exploration enthusiasts. It would open up so many possibilities for the exploration of our solar system and the possibility of actually ...

As you're reading this, NASA's records read some 250 spacecraft sent into space, carrying with them either humans or our hopes for some revolutionary discovery. None of them have actually left our ...