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Mars Odyssey Captures First Horizon Panorama of Arsia Mons

  • NASA's Mars Odyssey orbiter captured a unique image of Arsia Mons poking through morning clouds on May 2, 2025, at Mars.
  • The orbiter, launched in 2001 and the longest-running spacecraft around another planet, began this horizon imaging work in 2023 to study Martian clouds.
  • Arsia Mons, a 12-mile-high ancient volcano twice Earth's Mauna Loa height, is part of Tharsis Montes and often cloaked in early morning water ice clouds at aphelion.
  • Operations lead Jonathon Hill remarked that they chose to image Arsia Mons with the expectation that its peak would rise above the early morning cloud cover, a hope that was fulfilled. Meanwhile, scientist Michael D. Smith highlighted that the photographs show clear seasonal variations, providing valuable insights into the changing Martian atmosphere.
  • This image offers new insights into Mars's atmospheric evolution by showing cloud patterns and seasonal changes, important for weather models and future human exploration.
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Phys.org broke the news in United Kingdom on Friday, June 6, 2025.
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