The planet is almost 25,000 miles around and 4.54 billion years old, and humans are still discovering some of the amazing ...

How much do you know about our planet? Here are the amazing, odd and downright cool Earth facts scientists learned in the ...

About 71% of Earth’s surface is covered by water, and 96.5% of that water is found in the oceans.

From the moon's formation to the Earth's core, some of the planet's biggest mysteries are still wide open Fascinating unsolved mysteries about Earth Do you ever wonder about all the stuff we still don ...

Earth Day started in the 1970s. Here’s an Earth Day fact everyone should know: Earth Day was first observed on April 22, 1970 ...

From its 1970 origins to a global movement, Earth Day 2026 highlights the power we all have to protect our planet.

Ah, Earth. We may not think about our planet on a day-to-day basis, but the world we live in is a pretty interesting place. The third rock from the Sun—and to this day, the only one with known ...

Observed annually on April 22, Earth Day aims to raise environmental awareness and inspire global action. It highlights key ...

Be the reason Earth smiles today. These planet-saving changes actually add up—and help you make a difference without ...

Earth Day began in 1970. Earth Day was first celebrated in 1970, during a time when pollution and environmental damage were largely ignored. Inspired by growing public concern and ...