Why Do Planes Leave White Trails? Are They Dangerous?

Planes often leave w

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An airplane leaves a trail in the sky.

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Ever glanced up at the sky and noticed a plane tracing a white line overhead? These fleeting lines vanish almost as quickly as they appear.

Mystical white trail in the sky.

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People often have various theories about them - but neither magic nor miracles are involved.

Contrails as seen from the ground.

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Known as contrails, these white streaks are caused by engine exhaust, atmospheric temperature, humidity, and several other factors.

Ice crystals forming contrails.

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Contrails are made up of tiny ice crystals or water droplets, appearing momentarily before disappearing or staying longer based on the conditions.

Airplane contrails forming at high altitudes.

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Contrails occur when planes cruise at altitudes around 8 kilometers where the air is extremely cold, around -40 degrees Celsius.

Exhaust and moisture forming contrails.

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The exhaust from aircraft meets the sky's moisture, mingling with aerosol particles to craft these curious contrails.

Various contrails in the sky.

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Not all contrails behave the same. Some dissolve in moments, while others linger much longer.

Contrails affecting sunlight.

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As contrails proliferate, they might block the sun's rays, possibly influencing global warming or shifting temperatures slightly.

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