YR4 has a 2% chance of hitting Earth in 2032. Astronomers are tracking it to refine estimates of its size and orbit to see how much of a risk the space rock poses.

An asteroid could potentially collide with Earth eight years from now, as its orbit around the sun briefly intersects the path of our planet. Watch this report for more details!

Initial projections estimated a 1% chance of collision, but recent calculations have doubled those odds to 2.3%. Scientists admit, however, that much remains unknown about the asteroid's size and ...