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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 - 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 …

  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. Mars rover records audio of electric sparks in… - USA TODAY

    1 day ago · NASA's Perseverance rover has for the first time helped scientists confirm that electrical sparks often ignite within swirling mini-twisters on Mars.

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

    1 day 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 …

  6. A rover on Mars has detected a form of lightning : NPR

    Nov 26, 2025 · A chance discovery by a NASA rover on Mars shows that the red planet has a form of lightning, which researchers had suspected for decades but never seen.

  7. 1st human missions to Mars should hunt for signs of life, report says

    1 day ago · 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.

  8. 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 …

  9. 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 …

  10. 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 …