If you opted for the window seat on an airplane, it’s probably because you enjoy looking down at the Earth from the clouds ... the government is seeding the sky with. They have a million ...

A video of a strange shadow line in the sky spotted ... are narrow cirrus cloud streamers that form behind high flying aircraft." The NASA website explains: "When airplanes fly, humid engine ...

Contrails are human-made clouds. They are streams of condensation left behind from airplanes and rockets ... milky streaks across the sky. The contrails, or condensation trails, streamed in ...