Scientists are trying to understand how complex life emerged on Earth about 2 billion years ago. Our microbial ancestors could be the key.

Around 1.7 billion years ago, eukaryotes—the building blocks of complex life—first appeared on Earth, and now scientists have ...

Ancient microbes tied to our earliest ancestors could use oxygen, reshaping ideas about how complex life began on Earth.

A new study suggests that ancient microbes once cast as oxygen haters may have actually learned to use the gas, offering a ...

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

For decades, scientists have believed that complex life began when two very different microbes joined forces, eventually ...

Diesel engines cannot work without oxygen, so how do diesel submarines operate when they're underwater? Their propulsion system accounts for this limitation.

Most living things, including humans, rely on oxygen to survive. However, some bacteria have a completely different way of making energy. Instead of breathing oxygen, they breathe electricity.

You're likely familiar with cleaning with bleach, but you might not know there is actually a gentler, less pungent form of bleach. Oxygen bleach is a laundry and household cleaning product made famous ...

Oxygen therapy can help treat cluster headaches. However, current research does not support its use for migraine and other headache types. Oxygen therapy involves breathing in air that contains 100% ...