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  1. Mars - Wikipedia

    Mars is the fourth planet from the Sun. It is also known as the " Red Planet ", for its orange-red appearance. [22][23] Mars is a desert-like rocky planet with a tenuous atmosphere that is …

  2. Mars: Facts - NASA Science

    Nov 24, 2025 · Interestingly, while Mars is about half the diameter of Earth, its surface has nearly the same area as Earth’s dry land. Its volcanoes, impact craters, crustal movement, and …

  3. Mars | Facts, Surface, Moons, Temperature, & Atmosphere

    Dec 28, 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.

  4. Explore the Surface of Mars in 360° | AMNH

    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 …

  5. Planet Mars | Facts, Images, Surface | GO ASTRONOMY

    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.

  6. Mars: Definition, Atmosphere, Size, Discovery, Surface - Telescope …

    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 …

  7. The Martian Surface: Its Features, Composition, and Geology

    Jul 26, 2025 · Mars, often referred to as the “Red Planet,” is a captivating neighbor in our solar system with a unique surface. Its reddish hue, visible from Earth, hints at a world shaped by …

  8. ESA - Facts about Mars

    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% …

  9. Mars: Size, distance from the Sun, orbit | Astronomy.com

    Oct 20, 2023 · Mars is the fourth planet from the Sun and orbits roughly 142 million miles (229 million km) away from the Earth.

  10. Mars - Craters, Valleys, Plains | Britannica

    Dec 10, 2025 · Mars - Craters, Valleys, Plains: The character of the Martian terrain has been well established from spacecraft photography and altimetry. Almost the entire planet has been …