Earth's core isn't exactly aligned with its mantle, which results in a cyclical wobble, new research finds. When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

What did Earth look like 3.2 billion years ago? New evidence suggests the planet was covered by a vast ocean and had no continents at all. Continents appeared later, as plate tectonics thrust enormous ...

Impact craters found around the Earth that were made around the same time could be linked to debris falling from a ring, a new study suggests. By Becky Ferreira If you were to look up from Earth some ...

There are three things that I remember from my high-school Earth-science class: the swirling pink cover of the study book designed to help us pass New York State’s year-end test, the football player ...