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 ...

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 ...

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