Space agencies have systems in place to spot, track, and forecast the future orbits of potentially hazardous asteroids.

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 ...

There’s still a 1.7 percent chance that asteroid 2024 YR4 could hit the moon on Dec. 22, 2032, according to NASA.

Among the more than 37,000 known large space rocks, it's the only one right now with any chance of hitting Earth anytime soon. Initial projections gave the asteroid little more than a 1% chance ...