This illustrated geologic timescale of Earth focuses on the landscapes, flora and fauna of the West, drilling into the region’s deep history.

The surface of our world has been in a constant state of flux for millions of years. Continents have wandered, oceans have ...

Spanning billions of years, lunar soil could store a chemical record of ancient gases—materials that may one day support ...

Earth’s atmosphere is slowly leaking into space, and new research shows some of it reaches the Moon, where it may be ...

The Perseverance rover is continuing its mission to find clues about the geological past of Mars. The rover’s main goals are ...

The North American craton actually dips near the Rockies rather than forming a sharp vertical step as previously believed.

New findings from NASA's Perseverance rover have revealed evidence of wave-formed beaches and rocks altered by subsurface ...

About 700 million years ago, Earth was entombed in a veneer of ice hundreds of feet thick—a frozen state scientists refer to ...

The Chocolate Hills are 1,776 mounds on Bohol Island in the Philippines where grassy cover turns brown during the dry season.

The Ediacara Biota are some of the strangest fossils ever found—soft-bodied organisms preserved in remarkable detail where ...

"Without Mars, Earth's orbit would be missing major climate cycles. What would humans and other animals even look like if ...

Artemis II 'wet dress rehearsal' delayed due to weather, NASA officials say ...