Life on Earth. Where did it come from? How long has it existed here? While we're still searching for the answers to one of those questions, scientists think they might have discovered the answer to ...

Scientists are one step closer to understanding the origins of complex life on Earth after shedding new light on a mystery about our microbial ancestors. The key, they suspect, may lie in how simple ...

Add Yahoo as a preferred source to see more of our stories on Google. Earth’s magnetic field plays a key role in making our planet habitable. The protective bubble over the atmosphere shields the ...

Environmental evidence of the very first experiments in the evolution of complex life on Earth, has been uncovered by an international team of scientists. Until now, scientists broadly accepted ...

Explore the history of life on Earth, from 3.5-billion-year-old fossils to the vast diversity of species on our planet today.

(CNN) — More than half a billion years ago on a frigid, ice-covered Earth, glaciers stirred up ingredients for complex life by bulldozing land minerals and then depositing them in the ocean, according ...

(CNN) — Earth’s magnetic field plays a key role in making our planet habitable. The protective bubble over the atmosphere shields the planet from solar radiation, winds, cosmic rays and wild swings in ...