Astronomers have discovered the weirdest planetary system ever seen, consisting of a planet rolling around rare binary ...

In a memorable image from the 1977 film "Star Wars," the young hero Luke Skywalker gazes at two suns setting above the ...

Four space tourists are back on Earth after orbiting over the north and south poles. Their SpaceX capsule splashed down in ...

The first four humans to orbit over Earth's north and south poles have safely returned to Earth.

SpaceX brought back to Earth on Friday the four crew members of the private polar Fram2 mission that launched from Kennedy ...

SpaceX launched the first human spaceflight directly over Earth's polar regions on Monday -- a days-long, privately funded orbital mission involving four astronauts. Named "Fram2" after the famed ...