Most astronomers agree that life is likely common throughout the universe. While Earth is the only world known to have life, ...

Launched in 1972 by the Soviet Union, the spacecraft known as Kosmos 482 was part of a series of missions bound for Venus. But this one never made it out of orbit around Earth, stranded there by a ...

A ninth planet the size of Neptune may be hidden in the far reaches of the solar system, but the evidence has left some experts skeptical.

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...

Astronomers have long speculated about an unseen planet lurking in the solar system's outer edge. This hypothetical world, dubbed Planet Nine, could explain the unusual clustering ...

A meteorite found in Antarctica in 2012 suggests Earth may have formed with the materials needed to make water, a new study ...

If the object really is Planet Nine, it would be larger than Neptune and exist 700 times further from the sun than Earth.

Astronomers have detected a promising sign of a ninth planet lurking at the the farthest reaches of the Solar System.

New research challenges the meteorite hypothesis, suggesting Earth's water may be native, originating from the solar nebula rather than asteroidal impacts.

The solar system consists of our star, the sun, and everything bound to it by gravity: the planets Mercury, Venus, Earth, ...

Planet Nine (or Planet X as NASA calls it) first emerged as a real possibility ... sitting in the Kuiper Belt - a region in ...

A planet 140 light-years from Earth that is rapidly falling apart has been spotted by astronomers after they detected an "unusual" signal in space using a NASA satellite. The planet, which ...