Our planet has been asteroid-smashed, melted and eroded, enough that most of its original armor has been long buried. Except ...

The ancient history of Earth has always been hard to read. Most of the planet’s earliest crust has been lost, buried, or melted by geologic processes over billions of years.

Biogeographical regions of marine organisms, i.e., their distribution across different habitats, often overlap well with the ...

By confirming the age of these rocks, and that they might just be the oldest rocks on Earth, we’re finally opening the door ...