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An atmospheric phenomenon of the early morning or late evening, where the ground is in nighttime, but sunlight shines through the upper atmosphere, whereby rocket exhaust, the rocket plume, expanding in the upper atmosphere reflects light, creating a visual appearance similar to that of a jellyfish. It can result in reports of UFO sightings.
Definition source: English Wiktionary via Wiktextract
Usage: informal
Qualifier: space flight
Topics: aerospace, astronautics, business, engineering, natural-sciences, physical-sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
An atmospheric phenomenon of the moon-lit nighttime, whereby expanding rocket exhaust in the night sky reflects moonlight, creating the appearance similar to that of a jellyfish.
Definition source: English Wiktionary via Wiktextract
Usage: informal
Qualifier: space flight
Topics: aerospace, astronautics, business, engineering, natural-sciences, physical-sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
space + jellyfish. From having a jellyfish-like appearance, and being in the sky.
