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

New research suggests that the origins of life may be tied not only to deep-sea hydrothermal vents but also to environments ...

In a new book, astrophysicist Mario Livio describes how the existence of life on Earth can be traced back to an RNA-based “protocell.” The following is an excerpt from Is Earth Exceptional?: The Quest ...

How life evolved is one of the central questions in science and has fascinated humans for centuries. Early Earth was undoubtedly a harsh environment, but we know surprisingly little about the ...

When a bone grows, our bodies’ proteins help provide the structure. When a muscle tears, proteins help rebuild it. When we fight an infection, transport oxygen in our blood or send messages to a cell, ...

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In many submerged regions, murky mud shelters strange life-forms that seem to be the key to one of the biggest mysteries of life on Earth. These creatures belong to a domain of life called the archaea ...

The origin of life on Earth has been mulled over by scientists for centuries. We now know that life’s building blocks are RNA, amino acids, and cells. But if life originated from the primordial ooze ...

The emergence of the first biopolymers and their building blocks on the early Earth is considered a key moment in the origin of life (OoL), but how life began on the prebiotic Earth from a pile of ...