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

A Jupiter-like planet has been found orbiting a young sun-like star in a solar system far away in what is a potentially groundbreaking discovery. The planet, named WISPIT 2b, is believed to be a 5 ...

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

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

A new Tatooine-like planet outside the solar system may orbit two failed stars, scientists reported Wednesday. Located about 120 light years away, the exoplanet appears to take an unusual path ...

The solar system has many more moons than the one we can see in the sky. But how many do we actually know about? And how many ...

Astronomers have discovered a brand new type of planet outside our solar system that, even in its infancy, is already bigger ...

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.