Earth's oceans may have been green for billions of years until the first photosynthetic organisms flooded our atmosphere with ...

Ba-Si orthosilicate oxynitride-hydride shows promise as a transition metal-free catalyst for ammonia synthesis, paving the ...

Some cyanobacteria have pigments that specialise in harvesting green light to power their photosynthesis, which may be an evolutionary adaptation to a time when the oceans were iron-rich and green-tin ...