When the moon is positioned farther from Earth's equator and closer to the poles, its pull on the planet becomes weaker. With ...

The speed of Earth’s spin did not slow down in 2021, though 2021 was fractionally longer than 2020. 2022 is shaping up to be speedy, too. June 29 wasn’t the only day to whirl by unusually fast.

National Geographic is kicking off Earth Day early with Nat Geo's Earth Day Eve 2021, a virtual concert celebration, at 8:30 p.m. ET on April 21.

With the later days of April comes a time to celebrate all that nature entails; the one and only Earth Day — Monday, April 22 — in honor of our one and only Earth.

This doodle celebrated Australia's Parkes Observatory's 50th anniversary on Oct. 31, 2011.

Rivers on fire, acid rain falling from the sky, species going extinct, oil spills, polluted air, and undrinkable water: For so long, we didn't think of our planet as a place to preserve. And then ...

Earth Overshoot Day marks the date when demand for Earth’s ecological resources exceeds what the planet can regenerate. This year, the date is July 29.

We have discovered the oldest meteorite impact crater on Earth, in the very heart of the Pilbara region of Western Australia. The crater formed more than 3.5 billion years ago, making it the ...