The six-mile-wide asteroid punched a one-way ticket toward extinction for all non-avian dinosaurs. Some 66 million years ...

The last major asteroid event in recent history was the 18m-wide meteorite that hit Chelyabinsk in Russia in 2013. The fireball turned night into day and released an estimated 500 kilotons of energy .

An asteroid between about 130 and 300 ft. (40 and 90 meters) in diameter has been given a 2.3% chance of it hitting Earth on Dec. 22, 2032.

The likelihood of 2024 YR4 colliding with the our planet in 2032 have ticked up to over 3 percent. Is it time to start ...

YR4 has a 2.3% chance of hitting Earth in the year 2032. But according to new estimates, it may have an even smaller chance of hitting the moon instead.

That's 500 times the ... that it is a rocky asteroid, the effects would be similar to those of the Tunguska impact in 1908, where a surface area of (2,000 square kilometers) was devastated and ...

Lucy is preparing for a close encounter with the asteroid Donaldjohanson, a key milestone before its groundbreaking journey ...

Scientists created a sensation by saying that an asteroid named Asteroid 2024 YR4 is coming from space, which will pass so close to the earth in December 2032 that there is a possibility that it may ...

An asteroid that's big enough to wipe out a city ... releasing about 8 megatons of energy upon impact — more than 500 times the energy released by the atomic bomb that destroyed Hiroshima ...