Mars has two moons, but they're not quite like Earth's moon. That's raised a lot of questions about where they're from, ...

A new analysis estimates that the asteroid belt is steadily losing mass each year, and may not be as permanent a feature of ...

New research from Rice University suggests that the giant planet Jupiter reshaped the early solar system in dramatic ways, ...

The Carrington Event, as it was later called, revealed that the sun's environment could violently change. It also suggested ...

What's special about Chiron's rings is that they're still forming; this marks the first time astronomers have ever seen a ...

I/ATLAS is rich in carbon dioxide and challenging comet-theories. NASA's latest findings reveal why this interstellar visitor ...

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

New research shows how Jupiter carved out rings and gaps that changed how and when planets and meteorites formed.

Probably not, according to almost every mainstream scientist, but you never know.

The comet 3I/ATLAS, which many still believe to be a form of alien spacecraft, may reveal its origin as it passes behind the ...

New Haven, Conn. — Our solar system is a smashing success. A new study suggests that from its earliest period — even before the last of its nebular gas had been consumed — Earth’s solar system and its ...

Exoplanet hunters Christopher Watson and Annelies Mortier explain the long search for a 'twin Earth' capable of sustaining ...