He’s been to space, ran NASA and can do 40 pushups at IHOP. Here’s why Bill Nelson thinks Musk must rethink his Mars plan - ...

The U.S. wants to remain a superpower in space. It can’t without supporting NASA In the early 1400s, nearly a century before Columbus’s fateful voyage to the Americas, China seemed most poised to use ...

High above the Sun’s blazing equator lie its mysterious poles, the birthplace of fast solar winds and the heart of its ...

The CAVES training tests astronaut teamwork, resilience and scientific focus all needed for the challenges of spaceflight.

When Ann Walter looked outside her rural West Texas home, she didn't know what to make of the bulky object slowly drifting across the sky. She was even more surprised to see what actually landed in ...

Astronaut Don Pettit, who is known for blending science with visual storytelling, recorded the scene during his current ...

The asteroid is roughly 1 to 3 metres across and was first spotted by the Catalina Sky Survey a few hours after it had passed ...

For a quarter of a century, humans have continuously occupied the International Space Station. Here's a look at how far we've come and what's next.

A comet from another star system is swinging by Mars as a fleet of spacecraft trains its sights on the interstellar visitor.

For 24 hours a day, seven days a week since November 2000, NASA and its international partners have sustained a continuous ...

Space weather forecasting is decades behind Earth’s meteorology. Learn what makes auroras so unpredictable—and the real-time ...

Smithsonian National Postal Museum, Washington, D.C.