Earth’s earliest chapter is mostly gone. Rocks from the planet’s first few billion years have been eroded, buried, recycled, ...

The outer solar system once seemed like a quiet backwater. But a glut of tiny, strange moons with unruly orbits are coming ...

Scientists may have found one of the main sources of rocky material for the solar system, forming diverse populations of baby ...

Astronomers are watching the birth of a solar system unfold right before them. A young nearby star has revealed a second giant planet forming inside its dusty space surroundings. Scientists confirmed ...

The James Webb Space Telescope (JWST) captures extraordinary images of two planet-forming discs. For the first time, scientists have witnessed these cosmic structures from a unique perspective, ...

Another puzzle piece in how our solar system formed. The post Scientists Spot What Appears to Be a Ring-Shaped “Planet ...

The ingredients that help make a planet livable did not necessarily come from where many scientists once thought. A new ...

Material around Chiron, a small icy world in the far reaches of the solar system, may be taking shape into a ring system of its own. The rare event is unfolding in real time, giving astronomers a ...

Illustration comparing the planets of the Solar System and the Sun on the same scale. The planets are shown to scale relative to each other but their distances are not. From left to right the bodies ...