But while lifeless during that time, the planet was already covered by vast oceans dotted with hydrothermal vent systems that ...

Everyone knows the Earth has constantly evolved over the course of billions of years, and the natural landscapes we see today ...

Scientists have discovered evidence that Earth's oceans were once green, hinting that this could be a marker of early life, ...

Researchers have found that Earth’s first oceans may not have been blue at all like today. Instead, they may have gleamed in ...

A graph I saw in high school appeared to show the Earth breathing. It was a graph that plotted carbon dioxide in the ...

The earliest lifeforms, cyanobacteria, appeared around 4 billion years ago. These organisms, now known as algae, were among the first to engage in oxygenic photosynthesis.

Imagine the world’s oceans with their beautiful blue color. Now, imagine that the same oceans were green. This is the intriguing possibility suggested by new research from Nagoya University in Japan.

restricting the activity of cyanobacteria, a group of bacteria capable of photosynthesis," said Professor Eiichi Tajika from the Department of Earth and Planetary Science at the University of Tokyo.

"Compared with bare rammed earth, the cyanobacteria, moss and lichen biocrust-covered sections of the Great Wall exhibited reduced porosity, water-holding capacity, erodibility and salinity by up ...

Indeed, chloroplasts resemble modern cyanobacteria, which remain similar ... consequences for the evolution of all living things on Earth (Figure 1). Today, chloroplasts retain small, circular ...

Cyanobacteria are probably the most numerous creatures to have ever existed on Earth. They’re good for making oxygen but otherwise bad news for most life forms. Through neglect of our water systems ...