Jet contrails catching sunlight.
The sun has set over the horizon but the light is still catching the contrails.
Hope this clears things up for you.

Originally posted by Chadwickus
reply to post by constantwonder
Jet contrails catching sunlight.
The sun has set over the horizon but the light is still catching the contrails.
Hope this clears things up for you.![]()
If a contrail contains enough flammable material, it could ignite...
That is a good question though, how much fuel would it require to create a burning contrail...
Don't certain meteors produce a buring contrail?
A meteor is the visible streak of light that occurs when a meteoroid enters the Earth's atmosphere. Meteors typically occur in the mesosphere, and most range in altitude from 75 km to 100 km.
For bodies with a size scale larger than the atmospheric mean free path (10 cm to several metres) the visibility is due to the air friction that heats the meteoroid so that it glows and creates a shining trail of gases and melted meteoroid particles. The gases include vaporized meteoroid material and atmospheric gases that heat up when the meteoroid passes through the atmosphere. Most meteors glow for about a second.
Meteors may occur in showers, which arise when the Earth passes through a trail of debris left by a comet, or as "random" or "sporadic" meteors, not associated with a specific single cause.
Fireball
A fireball is a brighter-than-usual meteor. The International Astronomical Union defines a fireball as "a meteor brighter than any of the planets" (magnitude -4 or greater). The International Meteor Organization (an amateur organization that studies meteors) has a more rigid definition. It defines a fireball as a meteor that would have a magnitude of -3 or brighter if seen at zenith. This definition corrects for the greater distance between an observer and a meteor near the horizon. For example, a meteor of magnitude -1 at 5 degrees above the horizon would be classified as a fireball because if the observer had been directly below the meteor it would have appeared as magnitude -6.
Reentery of an object could produce the color.

!!!
Originally posted by GideonHM
Don't certain meteors produce a buring contrail? Reentery of an object could produce the color.
ab-la-tion
Pronunciation [a-bley-shuhn]
–noun
1. the removal, esp. of organs, abnormal growths, or harmful substances, from the body by mechanical means, as by surgery.
2. the reduction in volume of glacial ice, snow, or névé by the combined processes of melting, evaporation, and calving. Compare alimentation (def. 3).
3. Aerospace. erosion of the protective outer surface (ablator) of a spacecraft or missile due to the aerodynamic heating caused by travel at hypersonic speed during reentry through the atmosphere.
Originally posted by Sam60
This one is a picture that was thought to be an exploding meteor (i.e. fireball) that was captured just before it disintegrated.
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