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

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

At the surface, Mars is a desolate, barren world with a rocky landscape, massive dust storms and extreme temperature swings.

The series of pictures were captured from the Mars Global Surveyor. The post People swoon over images of hearts on Mars ...

The above image shows a 20-meter-long chunk of frozen carbon dioxide falling off a cliff. Rising temperatures during the ...

New images captured by NASA's Curiosity rover show colorful clouds in the sky over Mars. The images were captured by the rover's Mastcam, which NASA's Jet Propulsion Laboratory compared to the rover's ...

Incredibly powerful marsquakes that violently shake the red planet don't always begin under the surface, research shows.

A recent video created from images captured by Curiosity shows clouds tinted red and green flowing though the sky over Mars.

NASA's Perseverance Mars rover found a 'one-of-a-kind treasure' on the rim of Jezero Crater, a rock that could help reveal ...

Curiosity, a set of NASA 's robotic "eyes" on the Red Planet, recorded 16 minutes of so-called noctilucent clouds flying ...

Scientists are cataloging and analyzing the first samples collected by NASA's Perseverance rover while the agency weighs its options for returning them to Earth.

Red-and-green-tinted clouds drift through the Martian sky in a new set of images captured by NASA's Curiosity rover using its ...