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Life After Asteroid Bennu

A ‘Big Whack’ Formed the Moon and Left Traces Deep in Earth, a Study Suggests

What’s Inside the Earth’s Core?

How to Watch the ‘Green Comet’ in Night Skies

Is Time Running Out for the Leap Second?

A Partial Solar Eclipse Will Put On a Show. Here’s How to Watch.

The Juicy Secrets of Stars That Eat Their Planets

Reaching Closer to Earth’s Core, One Lava Scoop at a Time

Killer Asteroids Are Hiding in Plain Sight. A New Tool Helps Spot Them.

NASA’s SpaceX Crew-2 Departs International Space Station

NASA Says an Asteroid Will Have a Close Brush With Earth. But Not Until the 2100s.

Chinese Astronauts Arrive at Space Station

Will the Next Space-Weather Season Be Stormy or Fair?

Extraterrestrial Plutonium Atoms Turn Up on Ocean Bottom

A Chinese Rocket Is Tumbling Back to Earth. Where Will It Land?

The Lyrids Meteor Shower Will Peak in Night Skies

Video of NASA’s Mars Helicopter in Flight

Can This New Map Fix Our Distorted Views of the World?

Where Did the Dinosaur-Killing Impactor Come From?

Watch This Billion-Year Journey of Earth’s Tectonic Plates