Parallel Contrails

No, this was not the aftermath of a formation of U.S. Air Force Thunderbirds, but it was the result of five or six high-altitude aircraft paths occurring close to one another from the perspective of the camera. This shot of the north sky was taken from the grounds of Noelridge Christian Church in Cedar Rapids, Iowa around 10:45 AM on Sunday, November 7, 2010. Contrails are formed from a combination of water vapor in aircraft engine exhaust and air temperatures below -40 degrees F, typically above 26,000 feet.