A Montana fossil reveals that Nanotyrannus, once thought to be a young T. rex, was actually a full-grown predator and it's ...

Long before life thrived in Earth’s oceans, the planet’s magnetic field became disorganized. Deep within the ancient rocks of ...

New research reveals that Earth’s so-called “Boring Billion” was a time of dramatic change beneath the surface.

Imagine Earth installing a patch that makes life both stronger and stranger. That’s what happened 300 million years ago, when ...

Scientists have long wondered why Earth's overall makeup doesn't fully match the mix of materials found in ancient meteorites ...

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

Scientists have traced the origins of complex life to the breakup of the supercontinent Nuna 1.5 billion years ago. This ...

Hidden deep in ancient rocks, scientists have found the surviving traces of Earth’s first form—unchanged for 4.5 billion years.

When Earth’s ancient supercontinent Nuna broke apart, it reshaped oceans, cooled the climate, and set the stage for complex ...

Learn how the fossils of ancient organisms help scientists navigate deep time — and uncover Earth’s hidden history.

The appearance of oxygen in Earth's atmosphere was a turning point in the history of our planet, forever transforming the environment and setting the stage for complex life. This event, known as the ...