As Sir David Attenborough turns 100, here are 13 surprising facts about the beloved broadcaster and environmental advocate whose voice has shaped how generations see the natural world.

We tend to think of Earth as familiar and predictable. Same sky, same ground, same oceans. But once you start digging into ...

Earth is the planet we have the best opportunity to understand in detail—helping us see how other rocky planets behave, even ...

Earth Day started in the 1970s. Here’s an Earth Day fact everyone should know: Earth Day was first observed on April 22, 1970, followed in 1972 by World Environment Day. It has ...

Discover 100 Jaw Dropping Facts That Will Leave You Astonished! Explore mind-blowing truths about Earth, space, and science.

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 ...

JACKIE. YEAH. GOOD AFTERNOON. IT’S A REALLY NICE DAY OUT HERE. OF COURSE, WE’VE GOT THE SUN SHINING ON THIS EARTH DAY. A LITTLE BREEZY, SO MY HAIR HAS BEEN KIND OF GOING HERE. THERE AND EVERYWHERE. A ...

The natural world rarely behaves the way we expect. Physics bends intuition. Biology ignores neat categories. Space refuses to be reasonable. Some facts sound like they were invented for a science ...

The rusty world is full of mysteries—and some of the solar system's most extreme geology. Learn more about Earth's smaller, colder neighbor.

Gazing up at the clear blue sky, our eyes are often drawn to the Sun, that magnificent burning orb that illuminates our days, warms our planet, and supports the growth of our food. But how much do we ...