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

This updated version of "the Pale Blue Dot," made for the photo's 30th anniversary in 2020, uses modern image-processing software and techniques to ...

"Pale Blue Dot" – one of the last photos taken by Voyager 1 – is still the most distant image of the Earth. Astronomer Carl ...

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 ...