Rocks from the Hadean Eon, the first period in the geological timescale, have been dated in Québec. These are some of the ...

Ancient oceans with phosphorus-rich waters may have supported some of Earth’s earliest microbial life, according to a new ...

Humans first evolved as a distinct species, Homo sapiens, around 300,000 years ago in Africa. In terms of biological time, we are a young species on this planet-- an unfinished animal, our evolution ...