Ancient microbes may have been producing oxygen through photosynthesis a billion years earlier than we thought, which means oxygen was available for living organisms very close to the origin of life ...

Structures inside rare bacteria are similar to those that power photosynthesis in plants today, suggesting the process is older than assumed. The finding could mean the evolution of photosynthesis ...

Add Yahoo as a preferred source to see more of our stories on Google. Close up of an avocado leaf with a stem running diagonally from left to right. Photosynthesis is the process used by plants, algae ...