Scientists say they have found geochemical traces of Earth’s ancient self hidden far below our feet, suggesting that parts of the planet that existed before the Moon-forming collision 4.5 billion ...

Ancient glaciers reshaped Earth’s surface and shifted ocean chemistry, fueling the rise of complex life, a new study found. Calved icebergs from the Twin Glaciers are seen in 2013 off Greenland's ...

In a remote desert, scientists have discovered one of Earth’s oldest asteroid impacts. It dates to well over a billion years ago, to a time when our planet was inhabited solely by single-celled life.

Unearthing the mysteries of our planet’s past, ancient maps offer a unique window into the world as it once was, depicting continents that have long since disappeared. These maps, coupled with modern ...

Curtin University researchers have discovered the world’s oldest known meteorite impact crater, which could significantly redefine our understanding of the origins of life and how our planet was ...

For decades, geologists labeled a billion-year stretch of Earth’s history—from 1.8 to 0.8 billion years ago—as the “Boring Billion.” They assumed not much occurred during the time: mountain building ...

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 ...

A drawing of an orange, cloud-covered planet against a black background During the Archean Eon, 4-2.5 billion years ago, Earth likely looked very different than it does today. Its hazy skies may have ...

Australia’s ancient rocks are acting like natural clocks, revealing how landscapes changed over billions of years through ...

Tiny crystals preserved in ancient beach sands are offering scientists a new way to read the deep history of Australia’s landscapes.