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How Far Away is That Contrail?

When you look up in the sky and you see a contrail, how far away is it? How far away are these contrails, a mile? two miles? Would you believe they are actually 20 to 100 miles away? Contrails typically form above 30,000 feet, or around six to...
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Contrail Forecast

Sometimes planes leave contrails, and sometimes they don’t.  It depends on the weather, and specifically, it depends on the weather at altitude.  It’s also very localized.  A plane might leave a trail in one region, and another plane a mile away might not leave a trail. NASA have...
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Manu Ginobili’s Santa Monica Silver Surfer

CASE CLOSED:  It was Red Bull Air Force! Update:  Here’s the google earth file I was forwarded an interesting video on TMZ a few days ago: http://www.tmz.com/2010/12/09/manu-ginobili-ufo-video-san-antonio-spurs/ It shows Manu Ginobili of the San Antonio Spurs as he observes some kind of UFO in the sky behind him....
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Germans Admit They Used Düppel!

Another bit of “Chemtrail” mythology was born with this YouTube video: http://www.youtube.com/watch?v=FiUMfsR28SM This video has been seized upon by the Chemtrail community as evidence that “chemtrails” are real, and that the German government has admitted they are spraying “chemtrails”. Unfortunately the entire video is a very bad translation...
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Hole Punch Clouds in Los Angeles

I’ve talked about distrails and hole punch clouds before, but I’ve actually never seen one myself until this morning, when I saw two side by side. It’s quite rare to have this kind of weather condition in Los Angeles. I took a couple of photos at around 7:30AM...
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Contrail Confusion is Nothing New

Some people think that persistent contrails (high altitude aircraft vapor trails) are unusual, and are evidence of some secret government plot to modify the weather, or spread some population controlling drug or toxin. This is based on a misunderstanding of how contrails form, persist and spread. It is...
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