CAPE CANAVERAL, Fla. - A 150-foot asteroid hurtled through Earth's backyard Friday, coming within an incredible 17,150 miles and making the closest known flyby for a rock of its size. In a chilling ...

Earth has faced multiple mass extinctions in its long history, with the asteroid that wiped out the dinosaurs being the most ...

Space is filled with billions of stars, all of which will eventually reach the end of their life. For many of them, this means exploding in a very dramatic fashion. There are several ways that a star ...