Mars, a planet once capable of sustaining liquid water and harboring flowing rivers, today stands as a frozen desert. For ...

The second half of the 19th century was a particularly interesting time to imagine Mars. This was a period during which the ...

NASA’s Viking mission identified – among many other fascinating things – some curious dark streaks following downward slopes on Mars’s surface. Though we have yet to discover what those streaks ...

The team used data from NASA’s Mars Reconnaissance Orbiter to study high-resolution images of the terrain. Specific surface ...

NASA’s Mars Orbiter is rolling 120° to help see beneath the surface - and it’s revealing clearer signs of ice, rock, and ...

The Mars rover found geological formations in Gale Crater showing how water percolated beneath the surface, and ...

One of the great unsolved problems in modern planetary science is written on the surface of Mars. Mars has canyons that were ...

The results of a study into thousands of 'slopes' found by NASA on Mars' surface has left scientists surprised. The planet, ...

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 as Earth’s largest volcano ...

Arsia Mons, which dwarfs Earth's tallest volcanoes, and its two neighboring volcanoes are often surrounded by water ice clouds, especially in the early morning. The image released Friday marks the ...

Without resolving the planet’s surface or somehow communicating with its inhabitants, it was premature to speculate about what forms of life might exist on Mars.