Stupid Question Time:
Last night I was over my relatives sitting in the back yard enjoying a fire and looking up at the beautiful starry night sky. I noticed a few planes over head destined for Europe and I got to thinking:
Why do we only see contrails during the day?
I know it has to do with temperature, and water vapour but at 35,000 feet would the temperature change that much from day to night? You'd think you would see contrails at night from time to time.
Or is it just that I've somehow never noticed?
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"Calgary Flames is the best team in all the land" - My Brainwashed Son
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