Green oceans on early Earth, shaped by iron, pushed microbes to evolve light-absorbing tools that worked in green light.

Typically, a planet's magnetic field funnels the material into its atmosphere. But even planets without a field can still ...

It once covered a whopping 68million square kilometers and had a bustling fishing industry - but a fateful decision has seen ...

National Geographic is running a challenge for users to submit photos that "celebrate the beauty of the planet" for Earth Day ...

It’s Earth Day on April 22 and I want to get involved. How can I support environmental charities trying to address climate ...

NASA’s oldest active astronaut just gave Earth a jaw-dropping look at one of the planet’s rarest and most beautiful phenomena ...

The Geostationary Operational Environmental Satellites (GOES) captured a stunning view of Earth’s western hemisphere, with white clouds and snow, deep blue oceans, and green and brown continents. NASA ...

In the waters off Iwo Jima, a volcanic island in Japan’s Satsuma archipelago, the sea has a distinct green tint. It’s not ...

His latest novel, Witchcraft for Wayward Girls, heads to the sweaty oppression of 1970s Florida as a group of young women ...

Earth's auroras look a bit different from above. NASA astronaut Don Pettit captured two amazing videos of our planet's natural light shows from the International Space Station (ISS) last week.

Uranus seemed like a fairly calm, blue-green planet. But new findings from Hubble paint a different picture of Uranus.