Bacteria consist of a single cell. They do not have bones and are not like big animals that leave clear signs in the ...

Discover the evolution of bacteria through machine learning, DNA comparisons, and the Great Oxidation Event 2.4 billion years ...

Our planet’s first known mass extinction happened about 440 million years ago. Species diversity on Earth had been increasing ...

Microbial organisms dominate life on Earth, but tracing their early history and evolution is difficult because they rarely ...

Dr. Mae Jemison, the first woman of color in space, shares wisdom and encouragement with "CBS Mornings" co-host Gayle King ...

The discovery of salty mineral evaporites on Ryugu indicates that watery environments may have been widespread in the early ...

The compounds date to 3.7 billion years ago—around the same time that life first emerged on Earth. Although they could have been formed by either biological or non-biological activity ...

Findings about the chemical makeup of cave systems can teach us about life in places humans have yet to reach.

Researchers have created a "fingerprint" of a sulfur-based molecule found in space that may offer new clues about the formation of life on Earth, a new study reports. Sulfur is an essential ...

An ancient and enormous organism called Prototaxites, initially found to be a type of fungus, may actually be an unknown ...