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  1. Mars - Wikipedia

    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 …

  2. Mars: Facts - NASA Science

    Nov 24, 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 …

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

    5 days ago · 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. …

  4. What Does Mars Look Like | All About Mars - Star Walk

    Oct 27, 2025 · Mars is the fourth planet from the Sun and the seventh largest planet in the Solar System. With evidence suggesting that it once had flowing water, Mars holds many secrets …

  5. Mars Facts | All About Mars – NASA Mars Exploration

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

  6. 1st human missions to Mars should hunt for signs of life ...

    Dec 9, 2025 · Humanity's exploration of Mars should be organized around the search for signs of past or present Red Planet life, according to a new report from the U.S. National Academies.

  7. Search for Life Should Be Top Science Priority for First ...

    6 days ago · When astronauts set foot on Mars, it will be one of humanity’s greatest milestones, marking the start of a new era of discovery on another planet. A new National Academies …