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  2. Human mission to Mars - Wikipedia

    en.wikipedia.org/wiki/Human_mission_to_Mars

    Breathing gases. While humans can breathe pure oxygen, usually additional gases such as nitrogen are included in the breathing mix. One possibility is to use in situ nitrogen and argon from the atmosphere of Mars, but they are hard to separate from each other. [63] As a result, a Mars habitat may use 40% argon, 40% nitrogen, and 20% oxygen. [63]

  3. Life on Mars - Wikipedia

    en.wikipedia.org/wiki/Life_on_Mars

    Mars-1 was the first spacecraft launched to Mars in 1962, [266] 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 ...

  4. Planetary habitability in the Solar System - Wikipedia

    en.wikipedia.org/wiki/Planetary_habitability_in...

    Mars is the celestial body in the solar system with the most similarities to Earth. A Mars sol lasts almost the same as an Earth day, and its axial tilt gives it similar seasons. There is water on Mars, most of it frozen at the Martian polar ice caps, and some of it underground. However, there are many obstacles to its habitability.

  5. Mars Oxygen ISRU Experiment - Wikipedia

    en.wikipedia.org/wiki/Mars_Oxygen_ISRU_Experiment

    The Mars Oxygen In-Situ Resource Utilization Experiment (MOXIE) [1] was a technology demonstration on the NASA Mars 2020 rover Perseverance investigating the production of oxygen on Mars. [2] On April 20, 2021, MOXIE produced oxygen from carbon dioxide in the Martian atmosphere by using solid oxide electrolysis .

  6. Effect of spaceflight on the human body - Wikipedia

    en.wikipedia.org/wiki/Effect_of_spaceflight_on...

    In a weightless environment, astronauts put almost no weight on the back muscles or leg muscles used for standing up. Those muscles then start to weaken and eventually get smaller. Consequently, some muscles atrophy rapidly, and without regular exercise astronauts can lose up to 20% of their muscle mass in just 5 to 11 days. [67]

  7. Opinion: Mars rocks are a science prize the U.S. can't afford ...

    www.aol.com/news/opinion-mars-rocks-science...

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  8. Interplanetary contamination - Wikipedia

    en.wikipedia.org/wiki/Interplanetary_contamination

    Human explorers may be potential carriers back to Earth of microorganisms acquired on Mars, if such microorganisms exist. [45] Another issue is the contamination of the water supply by Earth microorganisms shed by humans in their stools, skin and breath, which could have a direct effect on the long-term human colonization of Mars. [8]

  9. Elon Musk admits ‘a bunch of people will probably die’ in ...

    www.aol.com/news/elon-musk-admits-bunch-people...

    Tech billionaire Elon Musk expects some fatal accidents when his company starts sending people to Mars to explore and colonize the red planet. “Honestly, a bunch of people will probably die in ...