"You could pull up Google Earth images of places like Utah, zoom out, and you’d see the similarities to Mars." ...

It always feels great to get back to my old stomping grounds! I grew up near this river where you can find absolutely ...

Earth's oceans could one day turn purple. Nearly three fourths of Earth is covered by oceans, making the planet look like a ...

Earth was once ruled by giant reptiles. Tyrannosaurus rex, the king of tyrant lizards, crushed bones. Spinosaurus hunted in ...

The changes in ocean chemistry were gradual. The Archaean period lasted 1.5 billion years. This is more than half of Earth’s ...

Visit ancient Mars—a surprisingly temperate planet where snow or rain falls from the sky, and rivers rush down valleys to ...

New research suggests ancient Mars may have been warm and wet, with rainfall or snowmelt carving its iconic valleys.

Spinosaurus hunted in rivers. Triceratops used horns for defense ... made it one of the most fascinating sea reptiles in the ancient oceans. It was nearly as tall as the average human's skull ...

an ocean. NASA's Perseverance rover, which landed on Mars in 2021, is currently exploring Jezero Crater, the site of one such ancient lake. During the Noachian, a powerful river emptied into this ...