Far from boring, this period saw the reorganization of deep Earth in manners that prepared the way for life to grow complex.

The Grand Canyon is a gigantic geological library, with rocky layers that tell much of the story of Earth’s history.

A thin slice of the ancient rocks collected from Gakkel Ridge near the North Pole, photographed under a microscope and seen under cross-polarized light. Field width ~ 14mm. Credit: E. Cottrell, ...

Long before the asteroid struck, dinosaurs reached their evolutionary peak. This documentary travels across prehistoric Earth ...

Human evolution is a story writ slow. It’s been about 3.8 billion years since life on Earth emerged and steadily began to ...

Ben Woodcroft receives funding from the ARC. Adrián A. Davín does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has ...

To better understand the circadian clock in modern-day cyanobacteria, a research team has studied ancient timekeeping systems. They examined the oscillation of the clock proteins KaiA, KaiB, and KaiC ...

Our species likes it cold. Homo sapiens evolved in — and still inhabits — one of Earth’s rare and fragile ice ages, periods distinguished not by an abundance of saber-toothed cats and woolly mammoths ...