More than 3.5 billion years ago, the Earth was not the hospitable world we know today. The atmosphere lacked oxygen, the seas ...

People have long wondered what life was first like on Earth, and if there is life in our solar system beyond our planet. Scientists have reason to believe that some of the moons in our solar system – ...

Learn how studying microbial communities during long-duration spaceflight could also reveal new ways to support human health ...

By Sean Mowbray Invisible in their trillions, microbes dwell in our bodies, grow in soils, live on trees and are integral to ...

Marine microbes cooperate far more than they compete, reshaping how scientists understand ocean ecosystems and climate ...

When humans need more Vitamin B12—a nutrient that makes healthy red blood cells and turns food into energy—we can get it by taking a supplement or eating fish. But what about ocean life, including the ...

Sift through your memories and excavate an image of a fossil. Maybe you’re picturing dinosaur bones, the imprint of an ammonite, or the fronds of a fern etched into stone. But there’s a whole other ...

It's tiny and needy, but is it alive? That's a question prompted by recent research that highlights a surprisingly complex part of biology. The organism in question is a microbe called Sukunaarchaeum ...