Overview

• On May 2, 2025, Odyssey captured a panoramic horizon image of 12-mile-tall Arsia Mons peeking through morning clouds.
• This marked the first time a Martian volcano appeared on the horizon in spacecraft imagery, offering a new planetary perspective.
• Odyssey’s 2023 high-altitude imaging campaign rotates the orbiter 90 degrees in each pass to reveal horizon profiles.
• Researchers observe distinct seasonal variations in cloud and dust layers around Arsia Mons, shedding light on atmospheric evolution.
• Launched in 2001, Mars Odyssey remains the longest-running mission orbiting another planet and continues to deliver critical atmospheric data.