NASA’s HiRISE camera captured 100,000th image of red planet, after 20 years in orbit

NASA’s HiRISE marks its 100,000th Mars image over Syrtis Major. (Image: NASA/JPL-Caltech/University of Arizona)

NASA’s Mars Reconnaissance Orbiter (MRO) has reached a remarkable milestone. Its HiRISE camera has captured 100,000 images of the Red Planet. The milestone highlights nearly 20 years of orbital photography.

The 100,000th image was taken on 7 October 2025. It shows dramatic mesas and sand dunes in the Syrtis Major region. This area lies about 80 kilometres southeast of Jezero Crater, where the Perseverance rover is currently exploring.

The photo provides striking detail of Mars’ surface. Scientists can see dune patterns and wind-blown sand clearly. Such images help track surface changes over time, including shifting dunes and occasional small avalanches on steep slopes.

Reaching 100,000 images is more than a number. Each image provides insight into the Red Planet’s past and present. HiRISE continues to capture high-resolution photos that guide scientific research, future missions and the understanding of Mars’ dynamic environment. From orbital views to rover snapshots, the Red Planet is coming into sharper focus than ever before.

HiRISE images play a crucial role in understanding Mars’ geology. The camera helps scientists study erosion, sediment transport and surface processes. Images also support mission planning by identifying safe landing sites for rovers and future explorers.

“HiRISE hasn’t just discovered how different the Martian surface is from Earth, it’s also shown us how that surface changes over time,” said MRO’s project scientist, Leslie Tamppari of NASA’s Jet Propulsion Laboratory in Southern California.

Interestingly, the target for the 100,000th image was suggested by a high school student. This was part of NASA’s HiWish program, which allows the public to recommend areas on Mars for HiRISE to photograph.

Team members at University of Arizona in Tucson, which operates the camera, also make 3D models of HiRISE imagery. This let viewers experience virtual flyover videos. The initiative inspires young scientists and engages the public in space exploration.