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.

REx mission has an historic opportunity to closely observe the asteroid Apophis and improve our ability to defend against ...

Our weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the ...

An overnight SpaceX launch planned for early Saturday will use a booster that’s already flown to space 25 times. A Falcon 9 is targeting 1:14 a.m. carrying 21 Starlink satellites from Cape Canaveal ...