Now years later, scientists say that might be because the asteroid could actually be a giant chunk of the moon.

Earth exoplanets orbiting M-dwarf stars, identifying specific candidates that may have retained detectable atmospheres.

In a remote sector of deep space, researchers have identified something unexpected — a signature that hints at molecular ...

An illustration depicts what the surface of one of the exoplanets orbiting Barnard's Star may look like. The other three planets within the system can also be seen. - International Gemini ...

There are about 15,000 satellites orbiting Earth. Most of them, like the International Space Station and the Hubble Telescope ...

The hunt is on for a second Earth, somewhere out there in the Milky Way galaxy, but a newly discovered world is not quite the thing. It comes in at around 1.9 times ...

A rare image reveals a giant planet clinging to two stars, helping scientists understand how planets survive in chaotic star ...

Researchers are keeping an eye on the building-sized asteroid 2024 YR4, which has a 4 percent chance of hitting the moon seven years from now.

Kosmos 482 is 3.2 feet across and could make impact at about 150 mph, per one expert Toria Sheffield joined the PEOPLE editorial staff in 2024. Her work as a writer/editor has previously appeared in ...

By tracking tiny stellar wobbles, astronomers have detected planets forming around young stars for the first time.

Our world could still be rocked indirectly. “City-killer” asteroid 2024 YR4 may no longer be on a collision course with Earth, but it could pose a threat to our planet. Astronomers have upped the odds ...