Overview

• The panorama marks the first time a Tharsis Montes volcano has been photographed on the Martian horizon.
• Odyssey’s high-altitude imaging campaign, which began in 2023, has now yielded four horizon views enabling seasonal comparisons.
• Data reveal distinct shifts in water-ice cloud layers and aphelion belt structures across Martian seasons.
• Arsia Mons, the southernmost Tharsis volcano, rises about 20 kilometers high—roughly twice the height of Earth’s Mauna Loa.
• Since 2001, Odyssey has delivered visible and infrared imagery that identifies subsurface water-ice deposits relevant to future human missions.