Scientists have created a new type of genetic replication system which demonstrates how the first life on Earth -- in the form of RNA -- could have replicated itself. The scientists say the new RNA ...

WASHINGTON (Reuters) - Fossil remains of a cell membrane component identified in rocks dating back about 1.6 billion years are opening a window into what scientists are calling a "lost world" of ...

Exactly how life sprung out of non-living matter is one of biology's biggest mysteries. But with continued research into our own origin story, it's starting to seem like life on early Earth was just ...

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WASHINGTON (Reuters) - Life on our planet faced a stern test during the Cryogenian Period that lasted from 720 million to 635 million years ago when Earth twice was frozen over with runaway glaciation ...

LIFE ON EARTH may have originated with DNA's cousin RNA, but how the modern world evolved from the RNA world is still mostly unknown. Now, in a new study published last week in the journal Nature, ...

MINNEAPOLIS — Huge meteorites may not deserve the bad rap they've gotten as life-ending agents of destruction, scientists say. In fact, cataclysmic collisions in space may have set the stage for the ...

How did the first chemical reactions get started at the origin of life and what was their source of energy? Researchers have reconstructed the metabolism of the last universal common ancestor, LUCA.