there are plenty of unmanned submersibles and they regularly produce new images, but it takes a pretty good chunk of energy to move around, following "interesti

there are plenty of unmanned submersibles and they regularly produce new images, but it takes a pretty good chunk of energy to move around, following "interesting" things isn't easy to automate and wireless is a non-starter at that depth so they're all still tethered to ships/platforms. if you've got something like a whale where it surfaces often you can do wireless tagging but that's about it for automatic exploration.