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

Reaching Alpha Centauri within a single human lifetime has long sounded like science fiction, yet a new generation of nuclear ...

Nuclear thermal propulsion (NTP) has stood as a promising potential alternative propulsion technology for decades. Chemical rockets have begun to reach their theoretical maximum efficiency, and their ...

NASA elected to grab key components from the Redstone and Jupiter rockets, combining multiple fuel tank designs together to ...