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NorthernBear 路 51-55, M
By definition we don't know. It literally means "Unidentified flying object." They could be anything from experimental aircraft to an undiscovered flying species to meteors to simple swamp gas to hoaxes. I don't think anything reported here on Earth as a UFO is likely to be an actual alien space craft. If they are here -- if -- they are so well hidden that we will not see them.
Platoscave 路 F
@NorthernBear when I worked at Kumon I saw a kid's story that said UFO's came from swamp GRASS.
Cracked me up!!
Cracked me up!!
NorthernBear 路 51-55, M
