Astronomers say they have evidence that there may be a hidden planet in our Solar System. Named 'Planet Y', the Earth-sized ...

Could a vagabond giant from the outermost regions of interstellar space be poised on the cusp of sweeping by our cosmic ...

Astronomers have recently detected a rogue planet entering our solar system, marking a rare event that has sparked ...

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

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 ...

Scientists theorised about the possibility of Planet Y after spotting a strange ‘warp’ in the Kuiper belt, which is a ring of ...

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

Ryugu is a carbon-rich near-Earth asteroid considered to have formed in the chilly outer reaches of the solar system.

NASA is tracking a mysterious, fast-moving object entering our solar system, raising questions about whether it's just a ...

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

A team led by University of Arizona astronomer Laird Close has discovered a growing planet outside our solar system, marking ...

A young planet has been spotted outside our Solar System, captured by the Very Large Telescope in Chile. The rare image shows ...