[Billcat]

Originally Posted by garinda

It's all down to altitude. It always amazes me when you're flying that you get ice on the plane windows. I wonder why that didn't happen to Icarus?



http://www.bbc.co.uk/weather/feature...altitude.shtml

And as you go higher, the density of the air, which helps to capture and reatain heat, rapidly decreases. Also, at sea level, there is a lot of land and water to capture and retain the sun's radiant heat. Not so at high altitudes!