Earth formed around 4.54 billion years ago. Knowing how old Earth is can be more difficult to confirm because Earth's age is not only based on the age of rocks, but also the isotopic estimates of what ...

Life made the modern Earth as much as the Earth made life, a new book by a philosopher of consciousness argues. That dynamic leaves humans with a unique set of moral questions, Peter Godfrey-Smith of ...

The history of Earth's continents might be different from what we first thought. The most popular theory of how the continents formed billions of years ago may not be right, according to a paper in ...

A new study published in Science Advances reveals that Earth’s life-friendly conditions may never have existed without a monumental cosmic accident. Researchers from the University of Bern ...

Scientists still debate the origins of Earth’s life-sustaining elements. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. For many years, ...

The discovery that helium and iron can mix at the temperatures and pressures found at the center of Earth could settle a long-standing debate over how our planet formed. When you purchase through ...