New simulations suggest that up to four of the solar system's rocky planets, including Earth and a long-lost world, once orbited in mathematical harmony around the infant sun.

The Sculptor galaxy is a treasure trove of information that astronomers around the world cannot wait to pick apart.

The solar system consists of eight planets, several dwarf planets, hundreds of moons, and billions of asteroids, comets and meteoroids.

A tiny object far beyond Pluto, newly discovered by the Subaru Telescope, could reshape our understanding of the early Solar System. Named 2023 KQ14, this rare “sednoid” follows an unusual ...

James Webb Spots Planets Forming Into Solar System in Real Time, Like an Organism's First Cells "For the first time, we can conclusively say that the first steps of planet formation are happening ...

Astronomers have spotted a planetary system being conceived from the swirl of gas and dust surrounding a star, giving us an unprecedented, real-time look at how our solar system would've formed ...

Astronomers have discovered the earliest seeds of rocky planets forming around a baby sun-like star, an unprecedented snapshot of "time zero," when new worlds begin to gel.