Ancient microbes illustrate a particular kind of respiration in which carbon dioxide and hydrogen are combined to form acetic ...

Get to know the "absolutely astonishing" true story behind the new movie "Last Breath," which chronicles a 2012 deep-sea diving accident.

It is widely believed that Earth's atmosphere has been rich in oxygen for about 2.5 billion years due to a relatively rapid increase in microorganisms capable of performing photosynthesis.