In the whole history of Earth's climate, few events are as extreme as those that geologists call "Snowball Earth." ...

The Winter Olympics often bring stories that go beyond medals and times. Some athletes step onto the world’s biggest stage wearing a flag that is not the one they grew up with. Many of them were born ...

For years, satellite data suggested that autumn snow cover in the Northern Hemisphere was actually increasing — a surprising twist in a warming world. But a new analysis reveals that this apparent ...

Six planets—including Venus, Jupiter, and Mercury—will line up in the sky. Here’s the best time to watch and where to find ...

All it takes is two dots and a slightly curved line for our brains to think that, say, random Cheerios bobbing in milk or a ...

The blissfully dark nights surrounding this month's new moon phase on Feb. 17 present a perfect opportunity to explore the wonders of the post-sunset realm while free of the glare cast by our natural ...

Astronomers have found a compact solar system whose planets line up in a way that, according to current models, should not be possible. Around the small star LHS 1903, a dense rocky world orbits on ...

The Science: Europa has been considered as a top contender for alien life for even longer than Enceladus, thanks to its massive under-ice liquid water oceans. It also displays water vapor plumes ...

A planetary system 116 light-years from Earth has a peculiar pattern. It could flip the script on how planets form, ...

The discovery is just the latest to come from the asteroid sample, which dates back to the dawn of the solar system.