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Mars Briefing

  • Largest volcano, Olympus Mons, is 16 miles high, 100 times larger than Mauna Loa in Hawaii
  • Valles Marineris canyon covers one-fifth of Mars circumference, 9 times longer than the Grand Canyon, AZ
  • 95% carbon dioxide in the Martian atmosphere
  • Nearly two Earth years/Martian year (687 days)
  • Mars has about 1/3 Earth gravity
    Credit: NASA

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