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

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

    Dec 3, 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. …

  4. Search for Life Should Be Top Science Priority for First Human …

    21 hours 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 …

  5. Mars - NASA Science

    Nov 24, 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 …

  6. Mars - Red Planet, Orbit, Moons | Britannica

    3 days ago · Mars - Red Planet, Orbit, Moons: Mars is the fourth planet out from the Sun. It moves around the Sun at a mean distance of 228 million km (140 million miles), or about 1.5 times …

  7. Mars Exploration - NASA Science

    Nov 24, 2025 · For more than 60 years, NASA has pursued answers to one of the biggest questions in science: Was — or is — Mars a habitable world? The key to understanding the …

  8. All About Mars | NASA Space Place – NASA Science for Kids

    Sep 25, 2025 · Mars is sometimes called the Red Planet. It's red because of rusty iron in the ground. Like Earth, Mars has seasons, polar ice caps, volcanoes, canyons, and weather. It …

  9. NASA Rover Detects Electric Sparks in Mars Dust Devils, Storms

    6 days ago · NASA’s Perseverance Mars rover has recorded the sounds of electrical discharges —sparks — and mini-sonic booms in dust devils on Mars. Long theorized, the phenomenon …

  10. The Mars Report - NASA Science

    Sep 10, 2025 · The Mars Report newsletter from NASA is your source for everything on or about the Red Planet. We bring you mission updates, spacecraft news, science findings, unique …