What can Mars’ red hue that’s been observed for thousands of years teach us about when water existed on its surface potentially millions, or even billions, of years ago? This is what a recent study ...

NASA astronaut Don Pettit has shared a striking video of an aurora that he captured from the International Space Station (ISS) during his most recent mission. Auroras are natural light displays in ...

The sighting of a bright red sphere racing out of our galaxy at extreme speed has handed NASA one of its strangest puzzles in years. The object’s color, shape, and apparent velocity combine into a ...