Ancient iron meteorites reveal that some of the Solar System’s first solid bodies were built mostly from tiny heat-forged rock beads called chondrules, while water-rich dust was largely excluded. The ...

A new study suggests Earth formed almost entirely from material in the inner Solar System, challenging the idea that water-rich material from beyond Jupiter played a major role. If correct, Earth’s ...

Earth will be long gone by then, but new research shows the outer planets will be thrown out too, and a billion times earlier than expected, according to astrophysics research. The outer planets of ...

Thousands of planets have been discovered beyond our solar system, offering clues to where life might thrive and whether Earth is truly unique. By Natalie Wolchover Natalie is a Pulitzer Prize winning ...