In 1971 Mariner 9 entered orbit around Mars, being the first spacecraft to orbit any body other than the Moon, Sun or Earth; following in the same year were the first uncontrolled impact …

Jul 15, 2025 · Mars – the fourth planet from the Sun – is a dusty, cold, desert world with a very thin atmosphere. This dynamic planet has seasons, polar ice caps, extinct volcanoes, canyons …

Oct 23, 2025 · Mars is the fourth planet in the solar system in order of distance from the Sun and the seventh in size and mass. It is a periodically conspicuous reddish object in the night sky. …

3 days ago · Mars can boast the largest volcano in the entire Solar System – Olympus Mons. With a height of 21 km, it stands about 2.5 times taller than Mount Everest. Mars’ larger moon, …

A guide to the Red Planet, Mars, including facts about its geology, a history of Mars missions and images captured by astrophotographers.

Mars once had liquid water on its surface and could have supported life. Scientists are uncovering how Mars transformed into the cold, dry desert world it is today.

NASA’s real-time portal for Mars exploration, featuring the latest news, images, and discoveries from the Red Planet.

3 days ago · Strange, sinuous gullies etched into the dunes of Mars are finally giving up their secrets.

Sep 30, 2025 · Mars is one of the most explored bodies in our solar system, and it's the only planet where we've sent rovers to explore the alien landscape. NASA missions have found lots …

Sep 10, 2025 · Ancient organisms may have left microscopic "biosignatures" on Mars. That's according to NASA scientists, who say a rock sample offers the most concrete proof yet that …