Mars explorers wanted!

Can you picture yourself as an explorer, farmer, surveyor or teacher on Mars? Download a NASA Mars poster (free!) that speaks to you.

Let NASA take you on a virtual trip to exoplanets

Exoplanets are worlds orbiting distant stars. Until recently, they existed only in the realm of imagination and probability. Now we know thousands! NASA's Exoplanet Travel Bureau lets you explore them.

Explore 20 years of Earth data

From NASA, 2 decades of planetary change. See detailed views of volcanoes fuming, hurricanes flooding, dams being built, wildfires sweeping across landscapes and more.

New Horizons is awake!

New Horizons is boldly exploring where no spacecraft has before. It's the craft that swept past Pluto in 2015. Now it's preparing for its next encounter on January 1, 2019.

Sharks’ 6th sense tuned to attack

In recent studies, sharks had a simple reaction to a wide range of electric fields, suggesting their system is tuned for one thing: catching prey.

When did humans learn to count?

Linguistic clues show how people around the world first developed mathematical thought.

Vesturhorn reflection

Wow! Photo by Grafixart Sam of Iceland's Vesturhorn mountain.

Dunes on Pluto? Yes, but made of methane ice

The discovery of methane dunes on Pluto is an indication of another way in which this planet mimics Earth, but in a way that is utterly unique and alien.

Globular clusters not as old as thought?

New research suggests that globular clusters - once thought to be nearly as old as the universe itself - aren't that old, after all. They might be only around 9 billion years old.

Guatemala’s Fuego volcano erupts in fury

The death toll is up to 65, with hundreds injured, from Sunday's powerful eruption of Volcan de Fuego in Guatemala.