Abstract During multiple Juno encounters with Io in 2023 and 2024, the spacecraft's imaging system, JunoCam, acquired approximately one hundred images of Io. These images have a range of scales down to 1 km per pixel, and covered more than half of Io's surface, including the previously poorly resolved northern and southern polar regions. Some of the highest resolution images were acquired of Io's nightside, illuminated by Jupiter‐shine. Here we provide an overview of the JunoCam Io data set and discuss the peculiarities of JunoCam's “pushframe” imaging. Using JunoCam's high resolution coverage of the northern polar region, we have developed an improved geologic map of this previously poorly resolved area, and estimated the heights of 16 previously unidentified or poorly imaged mountains. In the higher resolution images, 14 new or modified plume deposits were identified, as were at least 20 probable new lava flows. Eight “Prometheus‐type” volcanic plumes were identified, five of which were associated with areas showing flow‐like surface changes.
Ravine et al. (Mon,) studied this question.