When I drive in cold/wet weather the state of the roads is cause for concern. But more worrying is the risk of the wind-screen fogging over when least it should.
Space/Earth orbit is a different kettle of fish; an astronaut doesn't run the risk of rear-ending, or tail-gating. An astronaut doesn't drive a car either; not in space anyway - not yet. The astronaut has a space-suit, and a helmet. The risk of fogging probably does not exist - given that the suit is either in the sun ( > 100 C ), or in shade ( < -100C ).
But what about when we get to a celestial body with even a modicum of an atmosphere - E.g. Venus, Mars, Titan just to name a few.
- Could an astronaut (nominally, celestonaut) suffer helmet fogging during the course of exploration activities?
- How would helmet-fogging in a potentially hostile environment be avoided?
- As an aside, were any incidents of space-suit helmet fogging recorded in the annals of human spaceflight?