An unusual visitor has entered our cosmic neighborhood. Scientists call these objects interstellar objects, or ISOs. Unlike ...

Locked inside a frozen rock from the edge of the world is a story that began before Earth had oceans, continents or even a solid surface. A 4.5 Billion-Year-Old fragment of cosmic debris recovered in ...

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 ...

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 ...