It's only the third object in history from outside our solar system to be discovered cruising through our area of space.

Evaporative cooling is far from new—it has been used to cool living spaces and drinking water for centuries—but the Matter of ...

The picture that pops up before our inner eye when we hear the word "satellite" is probably this: Two extended solar "wings" ...

This is the strongest evidence yet of a rocky planet beyond our solar system with an atmosphere. Astronomers using the James ...

During the holiday season, it becomes all the more apparent that we are all awash in useless stuff. From the once-a-year seasonal outfit to ornaments without sentiment, trinkets we soon discard, and ...

For our latest annual list of the Coolest Film Festivals in the World, we started out by admitting we aren’t cool. When it comes to rating festivals, we’re obsessed with numbers and details and apples ...

The Geminids—among the few major meteor showers to come from asteroids—peak on Friday. It's one of the year's last chances to see fireballs in the sky. How do you find a comet that could pose a threat ...