Earth may have won a cosmic chemistry lottery. Researchers found that during the planet’s earliest formation, oxygen had to be in an extremely narrow “Goldilocks zone” for two life-essential elements, ...

This artistic illustration shows the TRAPPIST-1 red dwarf star system, home to seven Earth-sized exoplanets, several of which ...

Astronomers have narrowed down the cosmic search for life, identifying fewer than 50 rocky planets among thousands of known ...

Life on Earth may exist thanks to an incredible stroke of luck — a chemical sweet spot that most planets miss during their formation but ours managed to hit. A new study shows that Earth formed under ...

Scientists explain how simple chemicals, deep sea vents, and meteor impacts may have helped life begin on Earth.

Scientists have identified 45 Earth-like planets beyond our solar system that may support life. Using advanced space data, ...

A new study published in Science Advances reveals that Earth’s life-friendly conditions may never have existed without a monumental cosmic accident. Researchers from the University of Bern ...

Learn how a flip in Earth's magnetic field may have caused changes in the radiation on our planet.

The experiments revealed a stable and repeating pattern of flow. Hot material rises on the day side, moves across the top, ...

Add Yahoo as a preferred source to see more of our stories on Google. Chalk up another victory for “Conan the Bacterium”—a rugged germ that fresh research suggests could conquer the solar system.

A major impact can eradicate entire ecosystems. It can melt rocks, send debris around the planet, and create a dent in the ...

Tiny life forms tucked into debris from an asteroid hit could catapult to other planets—including Earth—and survive, a new Johns Hopkins University study finds. The work demonstrates that a certain ...