Cosmic speed limits can be a major inconvenience but they've rarely stopped science fiction in its tracks.

The Dragon capsule carrying four astronauts touched down safely off the coast of Florida shortly before 6pm Tuesday ...

Despite the ongoing conversation about the ethics of space travel, as private companies like billionaire Virgin founder Richard Branson's Virgin Galactic and Jeff Bezos' Blue Origin both offer ...

The Sunbird nuclear fusion rocket concept has the potential to more than halve the time to travel to Mars and cut travel time ...