Astronomers have identified a strange new kind of exoplanet that challenges how scientists classify worlds beyond our Solar System. The planet, L 98-59 d, appears to contain a vast ocean of molten ...

Could ancient humans really have built the pyramids without extraterrestrial help? Or do such questions reveal more about modern anxieties than the past itself?

Breaking space news, the latest updates on rocket launches, skywatching events and more! You are now subscribed Your ...

Diamonds are famous for their strength, but scientists have long suspected that another form of diamond might be even harder.

Debunking alien claims matters, but so does telling richer, more compelling stories about how humans shaped their own past.

The molten planet, with an atmosphere rich in sulfur-bearing gases, is unlike anything astronomers have ever smelled.

Astronomers have spotted a planet orbiting a star in our neighborhood of the Milky Way galaxy that presents a unique ...

Scattered across our planet's vast oceans lie forgotten fragments of land, each harboring secrets that time has tried to ...

In a series of experiments at Johns Hopkins University, Lily Zhao fired tiny samples of a microorganism with a room-sized gas ...

Missouri’s been hiding its own alien landscape this whole time, and it costs exactly zero dollars to visit Elephant Rocks State Park in Belleview. When billion-year-old granite decides to show off, ...

Non-fiction series dealing with unexplained phenomena. Here's how to watch "The Proof is Out There" season 6 online and from ...