The Twilight Phenomenon is a phenomenon that is visible to ground observers as a booster rocket or missile ascends from darkness to sunlight.
This phenomenon usually occurs 30 minuted before sunrise or 60 minutes after sunset.
The Twilight Phenomenon is a phenomenon that is visible to ground observers as a booster rocket or missile ascends from darkness to sunlight.
This phenomenon usually occurs 30 minuted before sunrise or 60 minutes after sunset.
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