Summary: NASA's Mars Reconnaissance Orbiter (MRO) and its High Resolution Imaging Science Experiment (HiRISE) have been capturing high-detail views of Mars for more than two decades. The 100,000th HiRISE image milestone, reported by NASA's Jet Propulsion Laboratory, highlights the enduring value of orbital imaging for Mars science, landing-site selection, and public engagement. HiRISE observations reveal a changing Martian landscape—from ancient river channels to active dune fields and seasonal frost—continuing to surprise researchers and space enthusiasts alike. This milestone underscores the continued importance of Mars imaging in understanding the planet’s geology and climate, as well as guiding future missions. Original, SEO-friendly draft (not a rewrite of the source text): Title: Mars HiRISE Milestone: 100,000 High-Resolution Images Illuminate Mars’ Hidden Surprises Body: For over 20 years, NASA's Mars Reconnaissance Orbiter has carried HiRISE, enabling researchers to study Martian terrain at astonishing detail. Reaching the 100,000th HiRISE image marks a major achievement in planetary imaging and demonstrates the mission’s longevity and scientific value. HiRISE data help map geology, monitor weather patterns, and assess potential landing sites by revealing canyon walls, dune fields, rock outcrops, and sedimentary layers. The ongoing survey supports science, exploration planning, and public fascination with Mars. Stay updated with NASA and space media coverage for the latest in Mars exploration. Keywords: MRO, HiRISE, 100000 images, Mars imagery, Mars geology, NASA JPL, space exploration, planetary science.