At the heart of some of the oldest rocks in the Earth's crust, an international team has identified a chemical signature ...

A discovery of ancient rocks might finally answer one of the biggest questions in science: how did the Moon form? Researchers ...

Scientists have long wondered why Earth's overall makeup doesn't fully match the mix of materials found in ancient meteorites ...

The solid inner core at the center of the Earth, surrounded by the outer core, mantle and crust. Here’s why: While it is well known that a material must be at or below its freezing temperature to be ...

About 4.6 billion years ago, the Solar System formed from a cloud of dust and gas collapsing in on itself due to gravity. The Sun, planets, and eventually Earth formed out of the cloud. But when did ...

A tiny meteorite is rewriting what scientists thought they knew about the origins of our solar system. New evidence found in shavings from a meteorite known as Northwest Africa 12264 — a 50-gram (1.8 ...