Missing planets? That literally happens all the time IRL. Here's why the Star Wars trope of incomplete star maps and missing ...

A large team of researchers working on the Alpha Magnetic Spectrometer Collaboration, which has been analyzing eleven years' ...

"We are the first mission to be able to track space weather events in three dimensions routinely across the solar system." ...

"This is the most powerful volcanic event ever recorded on the most volcanic world in our solar system — so that's really ...

Could extraterrestrial life exist beyond Mars?  Join NASA’s search for alien life in the outer solar system as we explore ...

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

Researchers say there’s a 1.3 percent chance that the space rock 2024 YR4 could strike our planet — but not until December ...

A suspected planet that appears well-suited to life has had its existence confirmed – and it’s very much in our neighborhood, ...

Avi Loeb shares the story of how a Tesla Roadster had some astronomers convinced for a time that they had discovered a new ...

If it’s real, some may question whether something with a mass about three times Pluto’s counts as a planet at all.