Mars, a world now circled by two lumpy rocks, may once have hosted a colossal companion that dominated its sky. New work on the planet’s tides, topography and wobbly interior points to a “lost” ...

On January 29, 1989, a Soviet space probe named Phobos 2 arrived in orbit around Mars. This was the last space mission launched by the Soviet Union. Its primary purpose was to study Mars' two moons, ...

Free-floating planets, or as they are more commonly known, rogue planets, wander interstellar space completely alone. Saying there might be a lot of them is a bit of an understatement. Recent ...

Life on Earth may exist thanks to an incredible stroke of luck — a chemical sweet spot that most planets miss during their ...

Astronomers have long searched for life within a rather narrow ring around a star, the "habitable zone," where a planet should be neither too hot nor too cold for liquid water. A new study argues that ...

My local Target was the first place I noticed the shift. One day, a few years ago, a sign appeared: red text on white paper announcing that no one under 18 would be allowed in without an adult. Before ...

"Most excitingly, this new idea addresses one of the longstanding habitability problems on Europa and is a good sign for the prospects of extraterrestrial life in its ocean." When you purchase through ...

Want to live longer but don’t want to change what you’re already doing to try and live a healthy life? We have good news. You likely don’t need to spend an extra three hours in the gym every week. You ...

Sci-fi loves a multiverse. Everyone from Rick and Morty to Spider-Man has stepped through a portal and met their alter egos. My personal favorite use of this trope comes from the sitcom Community, ...

Researchers are studying how hospitable our universe is to creating life. It’s related to the density of dark energy, which impacts star formation and the chances of life forming. The idea is that ...

Of all the abductions, this one is different.

Keeping a phone fully charged is the only way to make sure it's ready for a long day. But there's a major difference between being "charged" and being "healthy." Most modern Androids and iPhones are ...