Scientists have uncovered chemical evidence of life in 3.3-billion-year-old rocks from South Africa, offering some of the earliest signs of living...

Archean stromatolites, the first direct fossil traces of life on Earth. Credit: Ruth Ellison / / CC BY 2.0 Scientists have uncovered chemical evidence...

Archean stromatolites, the first direct fossil traces of life on Earth. Credit: Ruth Ellison / / CC BY 2.0 Scientists have uncovered chemical evidence...

Scientists have uncovered new chemical clues that life existed on Earth more than 3.3 billion years ago—much earlier than many previous estimates....

Scientists have uncovered new chemical clues that life existed on Earth more than 3.3 billion years ago—much earlier than many previous estimates....

While there is fossil evidence of life older than 3.3bn years, this is the first time that its molecular chemical fingerprints have been detected...

While there is fossil evidence of life older than 3.3bn years, this is the first time that its molecular chemical fingerprints have been detected...

Archaeologists working on the restoration of the Palace of Westminster, London, have uncovered artifacts believed to be about 6,000 years old,...

Archaeologists working on the restoration of the Palace of Westminster, London, have uncovered artifacts believed to be about 6,000 years old,...

Tryptophan, the essential amino acid behind the Thanksgiving myth that eating turkey can make you sleepy, has been found to exist on Bennu, a small...