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

An interstellar object detected on July 1 by NASA's Asteroid Terrestrial-impact Last Alert System project has sparked debate ...

The Oort Cloud is believed to be a vast shell of icy bodies, but scientists debate whether it marks the true edge of the ...

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

Exoplanets—worlds orbiting distant stars—were once only theory, until scientists found the first evidence beyond our solar ...

I/ATLAS is just the third-ever interstellar object confirmed to be from outside the solar system and which we have telescopes ...

A peculiar object that has defied NASA's expectations has been identified in space, which has been labelled as an ...

A team from Nagoya University in Japan and the Italian National Institute for Astrophysics (INAF) have used a new method to ...

Scientists have found signs of an undiscovered world, known as 'Planet Y', far beyond Neptune in our solar system, according to a recent study.

WISPIT 2b, a gas giant forming around a young Sun-like star, has been directly imaged for the first time inside a spectacular ...

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

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