NASA Captures Stunning Image of Gigantic Formation Piercing Mars' Morning Clouds

NASA’s Mars Odyssey orbiter recently unveiled a striking new image showcasing a colossal structure rising above the early morning clouds on Mars. Captured just before sunrise on May 2, 2025, and published by NASA’s Jet Propulsion Laboratory on June 6, this photo presents an extraordinary glimpse of Mars' horizon. This marks the first occasion where a feature of such magnitude has been observed from orbit breaching the cloud layer, offering a perspective more commonly associated with Earth-based space observations. The image was taken by rotating the spacecraft 90 degrees to capture the edge of the Martian atmosphere rather than the surface below.

A Majestic Peak Pierces the Martian Clouds

The image reveals a towering volcanic peak rising prominently through a misty cloud layer hovering close to Mars’ surface. Situated in the Tharsis region of Mars, this landmark appears to break through the upper atmosphere, resembling a sentinel guarding the planet’s edge. The enveloping clouds consist mainly of water ice that forms under the chilly pre-dawn conditions. The stark contrast between the glowing pale clouds and the dark, imposing peak creates a surreal and extraordinary scene. Jonathon Hill, who leads operations for Odyssey’s Thermal Emission Imaging System (THEMIS), shared, “We targeted this spot hoping to see the summit emerging above the early morning cloud cover. It truly exceeded our expectations.”

Arsia Mons stands as the southernmost volcano among the three forming Tharsis Montes, centered in this cropped Martian topographic map. Olympus Mons, the largest volcano in the solar system, appears at upper left. The western start of Valles Marineris carves a vast path at lower right. Credit: NASA/JPL-Caltech

Seasonal Atmospheric Changes Shed Light on Martian Weather

This photo is part of a broader effort to analyze Mars’ upper atmosphere as it changes through the seasons. Since 2023, the Odyssey orbiter has been taking high-altitude horizon images that offer valuable information about cloud behavior, dust distribution, and atmospheric layering. Such data is improving the understanding of how Mars’ weather patterns evolve over time. “There are noticeable seasonal shifts in these horizon scenes,” explained Michael D. Smith, a planetary scientist at NASA's Goddard Space Flight Center. “This is offering fresh insights into the long-term evolution of Mars’ atmosphere.” Tracking these seasonal trends helps scientists comprehend the planet’s climate and its influence on surface conditions.

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NASA’s 2001 Mars Odyssey orbiter captured Arsia Mons, an ancient volcano, before dawn on May 2, 2025. The image shows the atmosphere as a greenish haze surrounding the peak. Credit: NASA/JPL-Caltech/ASU

Cloud Dynamics Illustrate Mars’ Active Atmosphere

The peak often appears surrounded by thick morning clouds, especially during Mars’ aphelion—the point in its solar orbit farthest from the Sun. At this time, a broad equatorial cloud band forms, known as the aphelion cloud belt. These clouds develop when moist air rises over elevated terrain, cools quickly, and condenses. The newly revealed image vividly captures this atmospheric process, showing the volcano protruding through the mist like an island amid a foggy ocean. While the volcanic feature remains stationary, the changing cloud patterns around it demonstrate the Red Planet’s dynamic atmospheric activity.

Repurposing a Proven Workhorse for Atmospheric Exploration

Originally intended for capturing surface images, Odyssey’s THEMIS instrument has proven versatile in studying Mars’ atmosphere. It registers both visible and infrared light, enabling researchers to examine temperature variations, detect subsurface water ice, and observe Mars’ moons Phobos and Deimos. These abilities have allowed Odyssey — the longest-running active mission at Mars — to adapt and tackle evolving scientific objectives. By shifting focus to the horizon instead of the ground, THEMIS is enhancing knowledge of Mars’ climate system and producing breathtaking views previously thought unattainable.