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• n  an artificial cloud created by an aircraft; caused either by condensation due to the reduction in air pressure above the wing surface or by water vapor in the engine exhaust

• Even now, a week after news of the achievement first flew around the globe, traces of astonishment linger in the air like a contrail.
• Heading into the showdown Senate vote on the SST, proponents clung to a single hope, wispy as a contrail, of keeping the aircraft from crashing.
• When the first supersonic jet trans port takes off on a commercial flight, it will leave a contrail of money behind it.

• condensation trail

News & Articles

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• Rocket might be visible from San Diego
  The contrail from a Pegasus XL rocket might be briefly visible Thursday evening from San Diego County.
  June 26, 2013 - U-T San Diego

Quotes

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• Jeffrey Williams in Space.com
  The brightest thing through the window by far is the orbiter itself, with its contrail behind,ISS Expedition 13 flight engineer Jeffrey Williams told mission control, adding that the station crew turned off the lights in the US-built Destiny...
• Ed Lu in Xinhua
  You can see airplane contrails, and occasionally at the end of an airplane contrail, you will see a glint of sunlight off the airplane,Lu says. "And very occasionally, you do see other satellites go by. It is kind of a neat thing to see."