Imagining every drop of Earth’s water hurled into the Sun sounds like a last-ditch cosmic fire extinguisher, but the physics ...

Eight reactions could connect ancient Earth to modern day. Here's how. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A missing piece of Earth's ...

How did life begin? How did chemical reactions on the early Earth create complex, self-replicating structures that developed into living things as we know them? According to one school of thought, ...

A recently-discovered chemical process could have led to widespread formation of the greenhouse gas methane when Earth was young. The reaction doesn’t involve living organisms, so could have occurred ...