Nearly three fourths of Earth is covered by oceans, making the planet look like a pale blue dot from space. But Japanese researchers have made a compelling case that Earth's oceans were once green ...

Ancient oceans were green due to their high iron content Cyanobacteria adapted to green light for photosynthesis Climate change is increasing phytoplankton, altering ocean color ...

Professor and Head of Data Science for the Environment and Sustainability, Queen Mary University of London Nearly three fourths of Earth is covered by oceans, making the planet look like a pale ...

Earth's oceans, once green due to high levels of oxidized iron and anaerobic photosynthesis, could change color again. Early photosynthetic organisms used iron instead of water, leading to green ...

Nearly three fourths of Earth is covered by oceans, making the planet look like a pale blue dot from space. But Japanese researchers have made a compelling case that Earth's oceans were once green, in ...

When astronauts gaze at our planet from space, they call it the “Blue Marble.” But that iconic color, which reflects the vast oceans and sunlit sky, may be a relatively new look. Dive deeper into ...

Does that mean the ocean was once green? Yes, probably. An intriguing study published in Nature analyzed water chemistry in the Earth’s oceans during the Archaean eon, a critical point in our ...

Terra Nil is a beautiful, relaxed city builder that tasks you with transforming a barren landscape into a thriving ecosystem. Unlike most city builders, which often encourage you to expand your realm ...

Long before forests or fish, Earth’s oceans teemed with microbes. Chief among them were cyanobacteria — tiny architects of photosynthesis. Earth’s current blue oceans. Image via NASA.

Scientists have long credited cyanobacteria for sparking the Great Oxidation Event It flooded Earth’s atmosphere with oxygen and paved the way for complex life High levels of iron in the oceans ...