Washington, D.C. — Scientists have discovered a new window into the Earth’s violent past. Geochemical evidence from volcanic rocks collected on Baffin Island in the Canadian Arctic suggests that ...

At the heart of some of the oldest rocks in the Earth's crust, an international team has identified a chemical signature never observed until now. This major discovery opens a unique window onto the ...

Oxygen, essential to our existence, took nearly a billion years to appear in significant quantities on Earth, despite the presence of microorganisms capable of producing it. This delay in our planet's ...