The rover's 26th sample, known as "Silver Mountain," has textures "unlike anything we've seen before," NASA says.

Thad McCauley wanted to be an astronaut when he grew up. Instead, he became an art teacher. But now his art is in space.

Discover the breathtaking views from Himmelbjerget, Denmark’s 'Sky Mountain,' with this captivating drone footage. Soar over ...

The Martian dichotomy came to light in the 1970s following the Viking Probe's transmission of remarkably detailed Martian ...