Apr 2, 2026 · Mars appears to have had a watery past, with ancient river valley networks, deltas, and lakebeds, as well as rocks and minerals on the surface that could only have formed in liquid water.

Mars retains some water, in the ground as well as thinly in the atmosphere, forming cirrus clouds, fog, frost, larger polar regions of permafrost and ice caps (with seasonal CO2 snow), but no bodies of …

5 days ago · Mars has only 28 percent of the surface area of Earth, but, because more than two-thirds of Earth is covered by water, the land areas of the two planets are comparable.

2 days ago · What’s this fast-moving wave of darkness creeping across Mars? Observations by the Mars Express orbiter reveal rapid changes on the Red Planet’s surface from windblown volcanic ash

Explore the dramatic landscape of Mars — from the solar system's tallest volcano to its deepest canyon, ancient impact basins, and rust-red soil.

6 days ago · Why is Mars red? What’s the gravity on Mars? Read this article to get answers to these and many other questions and learn more about the Red Planet.

Martian year: 669 sols or 687 Earth days. Average temperature: –55ºC (from –133ºC at the winter pole to +27ºC during summer) Atmosphere: 95.32% carbon dioxide, 2.7% nitrogen, 1.6% argon, 0.13% …

Mars has a large, dark patch on its surface, known as the Syrtis Major Planum. It reaches around 1,500 kilometres north from the equator and is around 1,000 kilometres in width.

Mar 27, 2025 · Mars is the fourth planet from the Sun in the solar system. Mars exhibits a reddish hue caused by iron oxide on its surface. It has a thin atmosphere, diverse surface features such as …

Like Earth, the Moon, and Venus, the surface of Mars has continental or highland areas as well as widespread volcanic plains. The total range in elevation from the top of the highest mountain …