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.

THE WEEK'S TOP-SELLING CURRENT ALBUMS (LESS THAN 18 MONTHS OLD) ACROSS ALL GENRES, AS COMPILED BY LUMINATE. The Weeknd New this week! XO/Republic Highest ranking debut Gains In Performance Week of ...