Nov 24, 2025 · 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 …

Its surface gravity is roughly a third of Earth's or double that of the Moon. Its diameter, 6,779 km (4,212 mi), is about half the Earth 's, or twice the Moon's, and its surface area is the size of all …

Dec 3, 2025 · 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.

A text box covers the surface of Mars: “The surface of Mars in this video is made of images taken by different space missions, not simulations. When we knit all these images together, it …

Dec 18, 2024 · Its surface area is about 28% that of Earth. However, since Mars lacks oceans, the surface area is roughly the same as the combined land area of Earth’s continents. Despite …

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 …

Aug 11, 2025 · For more than 20 years, the European Space Agency's (ESA) Mars Express orbiter has been imaging the surface of the Red Planet. One region, in particular, continues to …

4 days ago · Bleached clay rocks found on the Martian surface suggest that the Red Planet was once home to heavy rainfall and tropical conditions, new Perseverance observations hint.

Diameter: 6794 km (about half the diameter of Earth) Surface area: 145 million sq km (about the same as Earth’s land area) Gravity: 3.711 m/s 2 (about one third of Earth’s gravity) Density: …

Mars has two small moons - both of which may be captured asteroids. Deimos and Phobos are very difficult to see except in large telescopes due to being so close to Mars.