Thick clay deposits on Mars hint at long-lived lakes that may have sheltered early life - and preserved clues beneath layers ...

Your blood is also red because of a mixture of iron and oxygen in a molecule called hemoglobin. So in a way, the ancient ...

NASA Odyssey orbiter snapped a first-ever image of a Mars volcano peeking above some clouds before dawn. It’s twice as tall ...

What do the clouds on Jupiter, dust storms on Mars and rainstorms on Titan all have in common? They look like they belong on ...

People from cultures across the world have been looking at Mars since ancient times. Because it appears reddish, it has often ...

New images from NASA's Curiosity Mars rover show the first close-up views of a region scientists had previously observed only ...

Mars and the star Regulus delighted stargazers last week when they were seen side-by-side in almost the same brightness but ...

The image, captured by NASA ’s Mars Odyssey orbiter, is the first of its kind: a volcano on the Red Planet seen on the ...

The planet Mars is home to thick layers of clay that can span hundreds of feet. Since they need water to form, these outcrops ...

New images from ESA's Biomass satellite reveal forests, volcanoes, deserts and glaciers in striking detail, hinting at what's still to come.