One of the oldest unsolved riddles in planetary science concerns the origin of the moon. Over a century ago, George Darwin ...

Conventionally, the moon is thought to have formed during one big impact, but a three-impact model might make more sense ...

An artistic rendering of a dust and gas disk encircling the young exoplanet, CT Cha b, 625 light-years from Earth. Spectroscopic data from NASA’s JWST suggest the disk contains the raw materials for ...

The James Webb Space Telescope measured a potential moon-forming disk encircling an exoplanet, NASA recently announced, inviting researchers to observe and study moon formation as it happens, while ...

Two immense canyons on the moon's far side that rival Earth's Grand Canyon were produced by a cataclysmic collision nearly four billion years ago, according to new research published on Tuesday.

For the first time, the chemical composition of a moon-forming disk around a planet has been revealed. The James Webb Space Telescope has, for the first time, measured the carbon-rich concoction that ...

For the first time, astronomers have found a disk around a Jupiter-like planet outside of our solar system -- the kind of disk where moons could actively be forming. The disk, known as a ...

Many of the most interesting bodies in our Solar System aren’t planets, but the moons that orbit them. They have active volcanoes, hydrocarbon oceans, geysers, and moon-wide oceans buried under icy ...

A long-lost planet that helped create the Moon may have formed much closer to the Sun than scientists once thought, according to new research. Scientists have discovered that Theia, the ancient planet ...

Apollo samples provide evidence: Researchers analyzed Moon rocks brought back by the Apollo missions and, for the first time, used their iron isotope ratios to trace where Theia originally formed.