A new study uncovered fresh chemical evidence of life in rocks more than 3.3 billion years old, along with molecular traces showing that oxygen-producing photosynthesis emerged nearly a billion years ...

How did the earliest life on Earth build complex biological machinery with so few tools? A new study explores how the ...

Deep in some of Earth’s oldest rocks, traces of ancient life still linger, even when every cell has crumbled. You would not see shells, bones, or clear microfossils in these rocks. Instead, you would ...

Earth's earliest continents may have set the chemical stage for life by regulating boron levels in ancient oceans, a new ...

Life’s first alphabet was likely small — but surprisingly powerful. Amino acid diversity in peptides and proteins over time. Over time, the genetic code expanded into the 20-amino acid alphabet found ...

Researchers have shed light on Earth's earliest ecosystem, showing that within a few hundred million years of planetary formation, life on Earth was already flourishing. An international team of ...

Maybe the first life on Earth was part of an 'RNA world.' Artur Plawgo/Science Photo Library via Getty Images How life on Earth started has puzzled scientists for a long time. And it still does.

A 2.5-billion-year-old rock from South Africa's Gamohaan Formation. AI analysis suggests the dark structures preserved in the rock are the remains of a complex microbial community. Pairing ...

A collaborative team of scientists has discovered that life on Earth over three billion years ago relied on the metal ...