Learn about cryovolcanism, which shapes the surface of icy moons in the outer Solar System by releasing water that ...

New discoveries of objects in the Kuiper Belt have also presented challenges for the Planet Nine theory. The latest is known ...

Evidence that rocky planets beyond Jupiter formed as rapidly, and at the same time, as the inner planets could transform our ...

"It is possible that a planet once existed in the solar system but was later ejected, causing the unusual orbits we see today ...

The celestial body's unusual orbit “implies that something extraordinary occurred" in the early days of the solar system—and ...

Harvard astrophysicist Avi Loeb co-authored a July research paper speculating about whether the comet 3I/ATLAS is in fact ...

The astronomers observed hot minerals just beginning to solidify – the first specks of planet-forming material, the astronomers said. A gaseous disk surrounding the young star is the first stages of ...

While astronomers have previously seen young discs that contain newborn, massive, Jupiter-like planets, McClure says, “we’ve ...

In 2018, an independent researcher bought a piece of space rock from a vendor in Morocco. It could change what we know of the ...

Scientists have been able to recreate the extreme conditions found on icy moons in deep space - and revealed the unstable ...

Astronomers have found 2023 KQ14, nicknamed Ammonite, a rare sednoid with a unique orbit that challenges the Planet Nine ...