New research suggests Earth was once a purple planet. Early microbes used retinal, not chlorophyll, for photosynthesis.

The Valentine's Day northern lights will largely be visible in Canada and Alaska, but a few northern-most states may see the ...

As pandemic lockdowns forced humans into isolation, Earth's vegetation was thriving. The year 2020 was the greenest in modern ...

Japanese scientists have created the first-ever long-term dataset about Earth's entire atmosphere, stretching all the way to space. They hope the project will help shed light on some little ...