The asteroid that exploded over Chelyabinsk injured around 1,500 people, damaged thousands of buildings, and exposed an ...

Scientists estimate there are thousands of asteroids large enough to destroy a city near Earth. NASA is sending a telescope ...

Plenty of asteroids can survive their fiery plunge through the Earth’s atmosphere. If they’re big enough, they can prove incredibly destructive, like the 60-foot Chelyabinsk meteor that exploded over ...