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vendingmachine commented on the word twilight shadowing
James Oberg explained many UFO sightings on the Internet. Most of them belong to one of three groups:
super-high plumes – rocket or missile plumes, especially lit by Sun on a dark sky;
space dandruff – ice flakes, fragments of insulation, etc. flying alongside a space vehicle, especially seen on backward-facing camera;
twilight shadowing – objects that move from shadow into sunlight in space appear as if coming from behind the clouds or from beyond the edge of the Earth.
September 23, 2016
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