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

Scientists found proof that a giant early planet existed in the solar system 4.5 billion years ago.

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

A rare meteorite found in the Sahara Desert may be evidence of a long-lost "protoplanet" that formed in the early solar ...

Four-and-a-half billion years ago, a massive world—possibly as big as the moon or even Mars—orbited our sun before crashing ...

You're probably familiar with how the solar system looks today. There are eight officially recognized planets located more or less on the same plane, orbiting the sun. But have you ever given a ...

Scientists may have identified one of the Solar System’s most important “planet factories” hidden just beyond Jupiter.

This small, unassuming mineral may be older than Earth itself. Krotite reminds us of the vast timescales and surprising ...

The dwarf planet Vesta is helping scientists better understand the earliest era in the formation of our solar system. Two recent papers involving scientists from the University of California, Davis, ...

Before the Earth and other planets formed, the young sun was still surrounded by cosmic gas and dust. Over the millennia, rock fragments of various sizes formed from the dust. Many of these became ...

Our solar system has two ice giants, Uranus and Neptune, but there may have been a third. According to a new study published ...