When an asteroid threatens Earth, astronomers use a rating called the Torino scale to communicate the risk. Richard Binzel, ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. On Friday (Feb. 15), an asteroid half the length of a football field will buzz close by Earth. It ...

YR4, the "city-killer" asteroid that briefly made headlines last year due to a small but non-zero chance that it may hit the ...

A sizable asteroid is going to make a close pass to Earth next week, scientists say, but there's no need to panic. The asteroid known as 4660 Nereus will come as close as 2.5 million miles to Earth - ...