Until now, scientists broadly accepted complex life forms first emerged on Earth around 635 million years ago (Ediacaran period). But an international...
The nature of Earth’s earliest crust and crustal processes remains enigmatic due to the almost complete lack of a rock record older than 4 billion years...
Once the Earth was fully formed about 4.5 billion years ago, its subsequent evolution was governed by complex geophysical processes. The planet, however,...
A group of researchers led by Prof J. William Schopf from the University of California, Los Angeles, has discovered a type of deep-sea microorganism that...
A new study, published in the journal Precambrian Research, describes evidence that primitive forms of life existed on land 2.2 billion years ago.
Bright,...
