> Venus and Titan have in common that probes landing there tend to only operate a few minutes before failing due to the extreme conditions. Venus, definitely.

> Venus and Titan have in common that probes landing there tend to only operate a few minutes before failing due to the extreme conditions. Venus, definitely. Titan though? Huygens is the only probe that's ever touched down there, and it's operational life was tied to its battery life and the fact that Cassini wouldn't be around very long to listen to it. Cassini was on a flyby trajectory, not an orbit around Titan, so as soon as the orbiter went over the horizon, that was it. Outfitting Huygens with enough power to stay on for future flybys would require MUCH more power, a job for which only an RTG would be appropriate since solar is out of the question that far out/under that atmosphere, and batteries just flat out don't last that long. Nothing about the moon itself prevented a long operational life.