NASA worked with a commercial partner to develop the SUNFISH [1][2] for future exploration of Europa. It's been used to explore underwater caves and they have a

NASA worked with a commercial partner to develop the SUNFISH [1][2] for future exploration of Europa. It's been used to explore underwater caves and they have a video showing the generated data from Peacock Springs [3] [1] https://oceanexplorer.noaa.gov/explorations/22sunfish/features/sunfish/sunfish.html https://oceanexplorer.noaa.gov/explorations/22sunfish/featur... [2] https://sunfishinc.com/ https://sunfishinc.com/ [3] https://www.youtube.com/watch?v=mpKFkrUeF9o https://www.youtube.com/watch?v=mpKFkrUeF9o