After two shuttle missions and three spacewalks, plus 20 years as a Navy pilot, NASA veteran Winston Scott retired from active duty. He now spends his days sharing space stories with the public.

Limitless Space Institute compares the travel time of spacecraft propelled by nuclear power to that of imaginative fusion ...

For decades, NASA has dreamed of building a rocket powerful enough to take humans to Mars - and now, that dream might finally come true. The agency is developing a nuclear-powered engine that could ...

The ESCAPADE mission, which launched to space on a Blue Origin rocket on Thursday, breaks the mold of how planetary science ...