Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system.
NASA scientists are already finding ways to make sure that the end of the world will not be caused by an asteroid.
The closest of the asteroids to us—estimated to be about the size of a car—is whizzing through space at 27,358 miles per hour ...
Near-Earth asteroid Bennu has a slim chance of colliding with Earth in 2182. If it does, the impact could trigger a global ...