It measures 130 to 300 feet across, a pebble compared to the asteroid that killed the dinosaurs, which is estimated to have been six to nine miles in length. On the other hand, on Feb. 15, 2013, an ...

This is not a drill. There is a chance - albeit a small one - that an asteroid could hit planet Earth within the next decade.

Explore Ceres, the largest asteroid in our solar system, and discover its remarkable ancient ocean and ice-rich crust.

The odds are now 1 in 43, the highest asteroid collision risk in 20 years. In a last-minute move, the James Webb Telescope ...

Asteroids that orbit close to the Earth inevitably cause us some anxiety due to the even remote possibility of a collision.

Scientists recently completed computer simulations of what would happen to Earth if it were impacted by an asteroid with a ...