A study of ancient stromatolites reveals that ammonium reservoirs in early Earth's oceans, likely influenced by volcanic ...

This problem of why the Earth was not heavily glaciated despite weak solar radiation has become known as the 'faint early Sun paradox'. For close to forty years, several solutions have been ...

"Given how rare such evidence is due to [Earth's] geological recycling processes, this is a major breakthrough in understanding early Earth." Geologists have discovered the world's oldest known ...