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  2. Mars - Wikipedia

    en.wikipedia.org/wiki/Mars

    Mars is the fourth planet from the Sun. The surface of Mars is orange-red because it is covered in iron (III) oxide dust, giving it the nickname " the Red Planet ". [21] [22] Mars is among the brightest objects in Earth's sky, and its high-contrast albedo features have made it a common subject for telescope viewing.

  3. Exploration of Mars - Wikipedia

    en.wikipedia.org/wiki/Exploration_of_Mars

    10. The planet Mars has been explored remotely by spacecraft. Probes sent from Earth, beginning in the late 20th century, have yielded a large increase in knowledge about the Martian system, focused primarily on understanding its geology and habitability potential. [1] [2] Engineering interplanetary journeys is complicated and the exploration ...

  4. Geology of Mars - Wikipedia

    en.wikipedia.org/wiki/Geology_of_Mars

    Geology of Mars. Generalised geological map of Mars [1] Mars as seen by the Hubble Space Telescope. The geology of Mars is the scientific study of the surface, crust, and interior of the planet Mars. It emphasizes the composition, structure, history, and physical processes that shape the planet. It is analogous to the field of terrestrial geology.

  5. Life on Mars - Wikipedia

    en.wikipedia.org/wiki/Life_on_Mars

    Mars-1 was the first spacecraft launched to Mars in 1962, but communication was lost while en route to Mars. With Mars-2 and Mars-3 in 1971–1972, information was obtained on the nature of the surface rocks and altitude profiles of the surface density of the soil, its thermal conductivity, and thermal anomalies detected on the surface of Mars.

  6. Moons of Mars - Wikipedia

    en.wikipedia.org/wiki/Moons_of_Mars

    Ares, the god of war, was known to the Romans as Mars . Compared to the Earth 's Moon, the moons Phobos and Deimos are small. Phobos has a diameter of 22.2 km (13.8 mi) and a mass of 1.08 × 10 16 kg, while Deimos measures 12.6 km (7.8 mi) across, with a mass of 1.5 × 10 15 kg. Phobos orbits closer to Mars, with a semi-major axis of 9,377 km ...

  7. Geological history of Mars - Wikipedia

    en.wikipedia.org/wiki/Geological_history_of_Mars

    The geological history of Mars follows the physical evolution of Mars as substantiated by observations, indirect and direct measurements, and various inference techniques. Methods dating back to 17th-century techniques developed by Nicholas Steno, including the so-called law of superposition and stratigraphy, used to estimate the geological ...

  8. Human mission to Mars - Wikipedia

    en.wikipedia.org/wiki/Human_mission_to_Mars

    Human mission to Mars. The idea of sending humans to Mars has been the subject of aerospace engineering and scientific studies since the late 1940s as part of the broader exploration of Mars. [1] Long-term proposals have included sending settlers and terraforming the planet. Currently, only robotic landers and rovers have been on Mars.

  9. Mars 2020 - Wikipedia

    en.wikipedia.org/wiki/Mars_2020

    Mars 2020 is a NASA mission that includes the rover Perseverance, the now-retired small robotic helicopter Ingenuity, and associated delivery systems, as part of the Mars Exploration Program. Mars 2020 was launched on an Atlas V rocket at 11:50:01 UTC on July 30, 2020, [4] and landed in the Martian crater Jezero on February 18, 2021, with ...