Photographer extraordinaire Don Pettit is about to return to Earth following a seven-month stay aboard the space station. Take a moment to enjoy his best work.

The image of Luke Skywalker gazing wistfully across the desert of Tatooine while a pair of “suns” set on the horizon is among ...

In a breakthrough that could reshape future lunar exploration, NASA researchers have confirmed that the solar wind—a stream ...

Skywatchers worldwide are in for a charming cosmic display before the sun rises next week as three celestial bodies will ...