Because of Venus's think atmosphere, landing a probe or rover is really easy. The downside, also because of Venus's thick atmosphere, is that the surface is re

Because of Venus's think atmosphere, landing a probe or rover is really easy. The downside, also because of Venus's thick atmosphere, is that the surface is really, really hot. That limits the lifetime of hardware on the surface. I think it ought to be possible to design a probe that's more like a submersible than a rover. Technically it would be an airship rather than a submarine, but given Venus's thick atmosphere it could be quite heavy and robust. This vehicle could bounce between the surface (for science) and the upper atmosphere (for recharging). In the upper atmosphere the probe could make more coolant from the atmosphere using solar power, and then it could make another dive to the surface.