All life on Earth comes from one single ancestor. And it's so much older than we thought. All life on Earth can be traced ...

One key component might be RNA, a molecular cousin of DNA found in every form of life on Earth, and now scientists say they ...

Using the XRISM space telescope, scientists spotted faint emissions of the elements in remnants of the Cassiopeia A supernova ...

A major study shows complex cells evolved gradually in an oxygen-poor world, challenging long-held assumptions about life’s ...

Human beings have been at the center of ecological change on Earth for thousands of years. But as history shows, no species ...

Life thrived on Earth far earlier than previously believed, flourishing under the harsh reign of the Hadean eon. LUCA—the last universal common ancestor—was even designed to fend off ancient viruses.

Scientists have discovered that complex life began evolving much earlier than traditional models suggested. Using an expanded ...

Earth is so far the only known planet on which life exists—with liquid water and a stable atmosphere. However, the conditions were not conducive to life when it formed. The gas-dust cloud from which ...

Surface-bound gels may have offered the structure and chemistry needed for life to take hold on Earth—and possibly elsewhere.

The origin of life on Earth has always been a mystery. For many years, scientists have looked to the stars, believing that the building blocks of life that set forth evolution here on our planet came ...

Earth, a vibrant ocean world with breathable air, active tectonics, and a protective magnetic field, uniquely creates the perfect habitable environment for sustaining diverse life. Earth and Mars have ...

The moon's surface may be more than just a dusty, barren landscape. Over billions of years, tiny particles from Earth's ...