Yes. You need to use radiation, via radiators. It’s a shame I’m getting downvoted on this, because I really do know what I’m talking about on this one. Ammonia in heat pipes wicks the heat away from the thing you want to be cold, towards the radiator, which is usually just a dumb coil, but could be enhanced with a bimetallic thermally decoupled louver if you want to keep it cool in sunlight. Or bury it, since we’re on the moon. From an engineering perspective it’s not that difficult to do, as the variables which affect it are well known and don’t change that much. It is for sure slower than combined conductive/convective cooling, but it’s a known quantity, so you can plan quite effectively.
Didn’t they throw it at a protective barrier, though? So zero potential of damaging the art?
Throwing soup at an oil exec is assault on a human being and would be worse, ethically, because human beings have sensory apparatuses and, presumably at least some level of emotion.
If you punched someone in the mouth because they threw soup at a protective plastic barrier in a museum, then it is you who would be the “utter cunt”.