New images captured by NASA's Curiosity rover show colorful clouds in the sky over Mars. The images were captured by the ...

"I'll always remember the first time I saw those iridescent clouds and was sure at first it was some color artifact." ...

NASA discovered five exoplanets orbiting stars in under 24 hours, challenging planetary models and providing insights into ...

A supposed square structure spotted on Mars sparked speculation about alien archeological sites on the red planet. It's a fun ...

NASA's two stuck astronauts may end up back on Earth a little sooner than planned. The space agency said Tuesday that SpaceX ...

"I find this asteroid to be extremely exciting! This is the last chance we have to observe the asteroid from Gemini before 2028." ...

NASA releases rare image of Mount Everest taken from space shuttle Columbia during the STS-80 mission in 1996, showcasing the ...

If you're looking for a way to tell someone that they are out of this world this Valentine's day, maybe look up ...

The space station and one other Easter egg — the site of NASA's next human moon landing — are hidden in this lucky photo.

NASA astronaut Suni Williams was undertaking a repair on the ISS when she was photographed from Earth by an amateur ...

We are getting a look at the recent weather conditions on Mars! NASA's Curiosity rover sent back these images of twilight ...