Despite the lack of a dedicated mission to the planet, scientists have learned plenty through ground observations and space ...

After a decade-long search, some scientists say a growing number of clues point to the existence of a hidden planet in the ...

The search for Planet Nine, a hidden world beyond Neptune, is heating up as scientists prepare to use a powerful new telescope.

Astronomers are investigating the possibility of a hidden ninth planet beyond Neptune, which could explain unusual orbital patterns in the Kuiper Belt.

Scientists speculate if Planet Nine is a new planet or a primordial black hole. Discoveries could redefine our understanding ...

Written by the former chief historian of NASA, the book examines the evolution of our cosmic understanding—from early civilizations to the present day ...

Tiny grains from a distant asteroid are revealing clues to the magnetic forces that shaped the far reaches of the solar ...

An urgent recall has been issued for a popular pram over collapse fears that could seriously injure babies and young children ...

Neptune and Uranus. Saturn seems to have snatched its first known Trojan asteroid, designated 2019 UO14, a few thousand years ...

Gaseous giant Saturn seems to have snatched its first known Trojan asteroid “2019 UO14” when the space rock was “bouncing” ...

A number of prams are being urgently recalled and parents are warned a defect could cause serious injury to babies and young ...