Our solar system may have hosted up to six giant planets in its first hundred million years, a new study suggests. The ...

The study, published in Science Advances, focuses on two elements that are essential for life as we know it: nitrogen and ...

A new study shows chemical compounds for life on Earth likely came from our inner solar system and not a distant comet or meteor and Jupiter played a part.

Alien probes could already be hiding somewhere in our Solar System – and our current surveys are nowhere near good enough to ...

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

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

Scientists from Skolkovo Institute of Science and Technology, together with scientists from the University of Graz, Kanzelhöhe Observatory, and Columbia University, have discovered how coronal ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Astronomers have found a distant celestial body — ...