The early solar system may have been far more chaotic than we ever imagined. A new study published in Icarus suggests that ...

At the edge of our solar system, Uranus, Neptune, and Pluto represent some of the most extreme and mysterious destinations ...

Astronomers surveying the outer solar system have revealed that a rare object far beyond Neptune is moving in sync with the eighth planet in an unexpected way. Called 2020 VN40 and first discovered in ...

TEMPE, Ariz. a Quick: What’s the order of the planets in the solar system? Need a little help? Maybe the following mnemonic rings a bell: “My Very Educated Mother Just Served Up Nine Pizzas.” It’s ...

Astronomers have found that a weird space rock at the edge of the solar system is locked in a rhythmic dance with Neptune. The object, designated 2020 VN40, is part of a family of distant solar system ...

The astronauts circling Earth on the Artemis mission sent back beautiful clear photos of the continents, clouds, and oceans.

Astronomers using planet-hunting satellites have discovered a rare solar system with six planets moving completely in sync with one another, as if they were untouched by any outside force since being ...