Explore 25 Major Events in Earth's 4.5 Billion Year History. Discover pivotal moments from its formation to the rise of life.

The mystery of how life on Earth originated , and whether it exists elsewhere in the universe, are "the raison d’être of space exploration", said Louis Friedman, co-founder of the Planetary Society.

Scientists have made a bold leap in the search for life’s origins, offering a fresh look at how chemistry might have crossed over into biology. At the center of this progress are coacervate ...

"Hearst Magazines and AOL may earn commission or revenue on some items through these links." Earth is a rocky amalgamation of materials. As far as we can tell, the formation of Earth took one of two ...

Scientists involved in planetary formation studies, meteorites, and early solar system investigations have been wondering about the origins of the ingredients that made up the planet Earth. Studies on ...

Geophysicists have modeled how Earth’s magnetic field could form even when its core was fully liquid. By removing the effects of viscosity in their simulation, they revealed a self-sustaining dynamo ...

Scientists at Yale and in Singapore have devised what may be the ultimate acid test — a comprehensive model for estimating the origins of Earth’s habitability, based in part on ocean acidity. The new ...

Scientists speculate that asteroids colliding with Earth delivered water—an essential building block of life—but new research suggests the planet didn't need the delivery. Reading time 3 minutes Water ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Here’s what you’ll learn when you read this story: There have been ongoing arguments ...