Surface Features of Ganymede Revealed in Jupiter‐Shine by Juno’s Stellar Reference Unit

Abstract On 7 June 2021, Juno crossed the orbital path of Jupiter’s moon Ganymede, flying within 1,046 km surface. Juno’s low‐light‐sensitive Stellar Reference Unit (SRU) navigation camera captured an image satellite’s dark side in a region Xibalba Sulcus illuminated solely by Jupiter‐shine. Collected at high incidence angle with 670–920 m/pixel resolution, reveals terrain morphology, ejecta, and numerous small craters that cannot be discerned Voyager imagery used for USGS global geologic map Ganymede. The data enable improved mapping Ganymede’s surface reinterpretation material crater ages previously characterized as light “undivided” due to poor resolution. illumination conditions achieved SRU observation geometry also reveal detailed morphology 270‐km elongated bright feature this area. These newly resolved features contribute understanding complex history.