Astronomers have found some pretty wild exoplanets. Some are balls of lava the temperature of hell, one is partially made of ...

Earth has changed significantly ... a gas that would poison us today. The first life forms were microscopic organisms that were anaerobic, meaning they did not need oxygen to survive.

One of the most mind-blowing and controversial Earth science concepts has to be the Gaia hypothesis. The idea was first introduced in the 1970s by chemist James Lovelock and microbiologist Lynn ...

The origins of life on Earth have long fascinated scientists ... hinting at ancient battles with viruses, and exhibited anaerobic metabolism, specifically acetogenesis. These traits allowed ...

Proposed in the 1970s by chemist James Lovelock and microbiologist Lynn Margulis, the Gaia hypothesis suggests Earth operates ... which wiped out anaerobic life, enabled oxygen-breathing organisms ...