1.75-Billion-Year-Old Fossils Are Oldest Record of Oxygenic Photosynthesis
The story of life on Earth can't be told without photosynthesis, the process by which plants (and some other lifeforms) convert sunlight into chemical energy. Now, a team of researchers has announced the discovery of fossilized photosynthetic structures-the oldest yet known-from a staggering 1.75 billion years ago.