Life on Earth may have learned to breathe oxygen long before oxygen filled the skies. MIT researchers traced a key ...

Learn how oxygen’s early rise could have given complex life the energy boost it needed to evolve.

Following a growing trend in professional sports, the Philadelphia Phillies are now the first Major League Baseball team to ...

Oxygen is everywhere on Earth today. But that hasn’t always been the case. Scientists think oxygen only became a lasting part ...

The most widely accepted scientific explanation for the arrival of all complex life on Earth has had an unsolved mystery at its heart. According to the theory, all plants, animals and fungi, known ...

As the climate crisis becomes a part of daily life with unprecedented heat waves and cold snaps, technology to effectively remove greenhouse gases is emerging as a critical global challenge. In ...

Oxygen fills the air today, but for most of Earth’s early history it barely existed. Scientists say the atmosphere did not hold steady oxygen until about 2.

As lunar missions ramp up with the goal of establishing a permanent human presence on the Moon, scientists are facing an ...

In the oceans and on land, scientists are discovering rare, transitional organisms that bridge the gap between Earth’s simplest cells and today’s complex ones.

Some of Earth’s earliest microbes evolved the ability to use oxygen hundreds of millions of years before it accumulated in ...