The ripples suggest that the lake was free of ice at one point.

The iridescent cloud reveals new clues about ice formation in the Martian atmosphere (no little green men, sorry).

NASA's Curiosity rover photographed remnants of rippling waves in an ancient Martian lakebed, proving that the Red Planet had ...

NASA’s Perseverance rover has made an exciting discovery on Mars, identifying new types of ancient rocks that could be the ...

Martian clouds are almost always made of dry ice, or frozen carbon dioxide. 95% of the planet's atmosphere is CO2.

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

NASA's Perseverance rover has been busy gathering bits of Mars — rock cores the size of chalk sticks, clusters of broken fragments no bigger than pencil erasers, and even grains of dust fine enough to ...

The Sun sets differently on Mars. Part of that is due to its distance from the star (an average of 142 million miles versus ...

NASA’s Curiosity rover captured stunning twilight images of Martian clouds, revealing iridescent red and green tinges. These ...

The car-sized Curiosity rover has spotted evidence of once quite hospitable environs on Mars.

Curiosity has been exploring the Gale Crater since August 2012. According to NASA, Curiosity was the largest and most capable rover ever sent to Mars when it launched in 2011. Its recordings aimed to ...

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 ...