Strange cone-shaped rocks led scientists to the hidden remains of one of Earth’s oldest asteroid impacts. It could help us find fossil life on Mars.

The universe is home to over 2 trillion stars, galaxies, and planets, and Earth, our home, is just one small part of this vast cosmos. Our planet has witnessed the rise and fall of many life forms, ...

Earth formed about 4.6 billion years ago, during the geological eon known as the Hadean. The name "Hadean" comes from the ...