Image Details
Caption: Figure 5.
Paterae on Io and Ganymede. (a) Tupan Patera on Io from Galileo (NASA/JPL: PIA03601). (b) Broad irregular depression. (c) Caldera-like feature on Ganymede superimposed by two small fresh impact craters. (d) Caldera-like feature on Ganymede. The white dashed line corresponds to double arcuate irregular scarps, and the yellow dashed lines to irregular boundaries.
© 2026 The Author(s). Published by the American Astronomical Society.