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One of the (many) videos of the recent meteor hit clearly shows two parallel counter-rotating contrails.
To create a contrail - wouldn't the meteor have to contain water?
I'll assume that this (internal) water caused it to explode into two (major) pieces that were then counter-rotating to conserve L.
I don't see how humidity in the air (per se) could cause a (persistent) contrail.
Or am I overlooking something?