During the Hadean eon, Earth was a world of constant impacts, molten rock, and a toxic atmosphere. The surface was repeatedly ...

Hidden in the southwestern corner of Idaho lies a natural wonder so unexpected, it feels like you’ve stumbled through a ...

As more satellite megaconstellations continue to be launched, researchers are exploring the odds people could be struck by falling debris from reentering spacecraft.

Look up on a clear night, and you might catch a strange kind of light show. A glowing streak of light, moving slower than a meteor, disintegrates piece by piece. That’s not a comet or a shooting star ...