Most planet-forming disks have warps that can lead to planets on inclined orbits, which could explain where the tilt of Earth ...

Astronomers propose a new hypothetical planet, Planet Y, beyond Neptune, based on observed orbital anomalies in the Kuiper ...

A Jupiter-like planet has been found orbiting a young sun-like star in a solar system far away in what is a potentially ...

Astronomers have picked up evidence of an Earth-sized world, distinct from the previously hypothesised Planet Nine and Planet ...

A team of astronomers at the University of Arizona played an integral role in uncovering a baby planet with a pretty cute name: WISPIT 2b.

Astronomers have, for the first time, detected a planet growing inside a cleared gap of a protoplanetary disk, confirming long-held theories about how young planets shape their star systems.

Travel through time to witness some of the most remarkable episodes in our solar system's history, uncovering its ancient ...

Astronomers using a pair of planet-hunting satellites discovered a solar system with at least six planets rotating around a star in perfect sync with each other.

Think you know Pluto? From icy plains to planetary debates, this quiz dives deep into the mysteries of our solar system’s most controversial—and captivating—dwarf planet.

Aliens may have been closer to Earth than first thought. New research from NASA reveals that Ceres, the dwarf planet in the ...

Astronomers have discovered a rare solar system with six planets moving in sync with one another. Estimated to be billions of years old, the formation 100 light-years away may help unravel some ...

Early Earth may not have had the right ingredients for life — until a nearby Mars-size planet crashed into it, two new studies hint.