The asteroid, around 100 feet in diameter, is speeding toward our planet at about 22,000 miles per hour, according to NASA.

Imagine for a moment that Earth suddenly shrank to the size of the Moon, while the Moon expanded to the size of Earth. How would life on our planet change? Could humans survive this dramatic cosmic ...

Could an ocean – likely needed to sustain life – even survive on a planet orbiting close to a dead star? When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

The space rock is hurtling through our cosmic backyard at a zippy 26,200 miles per hour, according to the space agency.

Early Earth may not have had the right ingredients for life — until a nearby Mars-size planet crashed into it, two new studies hint. When you purchase through links on our site, we may earn an ...