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

See stunning photos of Earth taken from space by astronauts and robotic spacecraft, celebrating our home planet on Earth Day.

The results of the planet’s first annual physical—a complete health check—are in, and they are alarming. We are deep into the yellow danger zone and moving rapidly towards the red high-risk zone, ...

As just one of all the living creatures on Earth, you're along for the ride as our planet constantly moves in two major ways. When you purchase through links on our site, we may earn an affiliate ...

If you were to imagine all of Earth's history as just one day, as in Carl Sagan's cosmic calendar, humans wouldn't arrive until the last few seconds before midnight. A few hundred thousand years of ...

Nature in the Neighborhood On Dec. 24, 1968, Apollo 8 astronaut William Anders took a photo that photographer Galen Rowell ...

A collaborative team of scientists has discovered that life on Earth over three billion years ago relied on the metal ...

The number is increasing, too. This visualization, which is based on Space Force data and excludes debris, suggests that the ...

Discover the Earth Day 2026 theme “Our Power, Our Planet” and its deeper meaning. Learn why this global movement matters, how it connects to climate action, and what steps individuals can take to ...