From the cratered companion that lights Earth's night sky to the hundreds of icy worlds circling the Solar System's giant planets, moons are among the most fascinating objects in space. Over the past ...

While life on Mars (and Venus) has long been an obsession for those wondering if we're alone, there are other places in our ...

The outer solar system once seemed like a quiet backwater. But a glut of tiny, strange moons with unruly orbits are coming into view, revealing hints of a surprising past – and the origin of Saturn's ...

Have you ever looked into the stars in the night sky and asked yourself questions like “What else is out there?” The universe ...

On August 12, 2026, lucky viewers in and around Greenland, Iceland and Spain—weather allowing—will be able to see one of ...

Moon impact 3.5 billion years ago reveals hidden Solar System history through tiny mineral grains. The discovery shows asteroid bombardment continued long after the Late Heavy Bombardment period.

Two massive planets may have once existed in early solar system before being ejected, leaving behind evidence in unusual ...

Add Yahoo as a preferred source to see more of our stories on Google. Jupiter's giant moon Ganymede is the only known moon to have its own magnetic field — and it may be heating up in a process "not ...

James Webb found Neptune's moon Nereid has an unusual icy surface, suggesting it formed alongside the planet instead of being captured later.

Earth and the Moon both record evidence of a 'lost' period of bombardment. (NASA) Tiny crystal grains trapped inside a meteorite may be the key that unlocks a hidden era in the Solar System's history ...

Humankind is returning to the Moon, but we won’t stop there. The international Artemis program is designed to enable exploration much farther afield. Care to float around on the Martian moons? How ...