Earth facts

Barents Sea to the west of Russia’s Yuzhny Island bloomed with beautiful current-borne swirls of phytoplankton.

Episode

410

Essential Algae

March 4, 2025

An engraving from the seventeenth century of Hercules assisting Atlas to carry Earth, by Claude Mellan (1598–1688)

Episode

409

We Moved the North Pole

February 25, 2025

The Rancho La Brea Tar Pool as depicted by Charles R. Knight in 1921

Episode

405

Where Did the Giant Mammals Go?

January 28, 2025

A frozen wood frog held in the lab.

Episode

403

Frogsicles

January 14, 2025

An artist’s impression of a planet with a magma ocean at its surface

Episode

381

The Birth of Earth

August 13, 2024

The Historic Entrance to Mammoth Cave

Episode

379

Mammoth Cave’s Rich History

July 30, 2024

Rust forms on an intricately decorated iron lock

Episode

376

Rust Results

July 9, 2024

View of Big Bend National Park at dusk

Episode

371

Rio Grande's Big Bend

June 4, 2024

picture of the Earth–Moon system

Episode

367

If Earth Had No Moon

May 7, 2024

Three of the many swimmers depicted in the Cave of the Swimmers

Episode

366

Swimming in the Sahara

April 30, 2024

A Pi Day pie

Episode

359

Pi (π) Is Everywhere

March 12, 2024

The geologic clock

Episode

348

Deep Time

December 26, 2023

A container holding dry ice.

Episode

344

Our Water Supply Is Blown Away

November 28, 2023