Roughly 4.5 billion years ago, the young solar system was a swirling cloud of gas and dust that formed the first asteroids and planets, including the young Earth, then a hot, molten sphere likely ...

The deficit of this isotope is now thought to mean that some of the oldest rocks on Earth are actually remnants of our planet ...

When thinking about the ancient animals of Earth, you likely picture fish, birds, and dinosaurs. But a new study published in the Proceedings of the National Academy of Sciences suggests that the ...