The asteroid that struck the Earth 66 million years ago devastated life across the planet, wiping out the dinosaurs and other organisms in a hail of fire and catastrophic climate change. But new ...

Nitrogen, upon which all life on Earth depends, may hold the key for explaining how early life on the planet evolved and how it could evolve on other planets.

Modern cells are complex chemical entities with cytoskeletons, finely regulated internal and external molecules, and genetic ...

Their trunklike fossils were discovered in 1843. Yet despite more than a century of speculation, scientists have struggled to answer the most basic question about Earth’s original terrestrial giants: ...

Earth's first large land organisms—tree trunk-like beings that stood up to 26 feet tall—weren't early fungi but, rather, ...

Life on Earth exists in places once thought completely uninhabitable. This video explores the most extreme creatures known to science and the conditions they endure. From crushing pressure to toxic ...

Deep-sea sediment layers show rare microbial wrinkle structures that formed in environments far beyond the reach of sunlight. Dr. Rowan Martindale, a paleoecologist and geobiologist at the University ...

By resurrecting a 3.2-billion-year-old enzyme and studying it inside living microbes, researchers at the University of ...

MassMutual provides several types of life insurance, including a high-performing, dividend-earning whole life product, but some buyers might see higher-than-average rates for term coverage Written By ...

Add Yahoo as a preferred source to see more of our stories on Google. The one big thing that people have in common is that we all will die, and we likely will experience the death of someone we love, ...

We asked you to vote on the best films of the year. The results ranged from big box office hits to small art-house indies. We asked you to vote on the best films of the year. The results ranged from ...