Cognitive dissonance?
Io cools down from a balmy -235 °F (-148°C) to a frigid -270°F (-168°C)
According° to Wikipedia, SO2 boils at 14 °F (-10 °C) and freezes at -98 °F (-72 °C), in which case, at Io's referenced temperatures, it should be lying around on the ground all day. Is the difference due to the pressure, or is there an error in values, conversions, or am I missing something here?