The ancient history of Earth has always been hard to read. Most of the planet’s earliest crust has been lost, buried, or melted by geologic processes over billions of years.

The NASA/ESA Cassini-Huygens mission explored Saturn and its moons from 2004 to 2017, providing the most detailed images and ...

Commuting to Concordia research station in Antarctica takes days—it’s more remote than the International Space Station. Here’s how to get there.

Pope Leo XIV has warned of the dangers of climate change as much of Europe swelters under a heatwave. "Extreme natural ...

A mass extinction event wiped out around 90% of life. What followed has long puzzled scientists: The planet became lethally ...