The ingredients that help make a planet livable did not necessarily come from where many scientists once thought. A new analysis of iron meteorites suggests that nitrogen and phosphorus, two elements ...

Gliese 710 is on course to pass near the Solar System in the distant future. When it approaches the Oort Cloud, its gravity ...

The standard story of the origin of our solar system has gone like this: 4.6 billion years ago, a giant cloud of dust hung frozen in space. Then the explosion of a nearby star caused part of that dust ...