At first glance, the dwarf planet Ceres hardly inspires dreams of alien life. Orbiting between Mars and Jupiter in the asteroid belt, it is a frigid, gray world, battered and cracked. Its surface ...

Add Yahoo as a preferred source to see more of our stories on Google. If you were to ask a group of dedicated amateur astronomers to list their favorite telescopic targets, few if any would mention ...

If an asteroid is on a collision course with the moon, what should humanity do? Try to nudge the space rock out of the way before it strikes? Obliterate it with a nuclear explosion? Such a cosmic ...

Scientists caution that asteroid deflection must be precise, as striking the wrong spot risks sending it through a gravitational keyhole that sets up a future collision with Earth. Using lessons from ...