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Mysterious objects seen over several states

Is it a bird, a plane, a UFO? It's a...red sprite- All Images | NSF - National Science Foundation

Is it a bird, a plane, a UFO? It's a...red sprite- All Images | NSF - National Science Foundation

UFO Spotted In Sky Above Memphis, Eyewitness Has Hilarious Reaction

A Word about Those UFO Videos - Scientific American Blog Network

Is it a bird, a plane, a UFO? It's a...red sprite- All Images | NSF - National Science Foundation

UFO' spotted hovering over Paris

Strange sighting sparks UFO speculation in Milton Keynes town | Milton Keynes Citizen

UFO over Woodlake? | KMPH

UFO' spotted over skies with flights to East Midlands Airport disrupted - Nottinghamshire Live

UFO reporting increases in New Mexico, data shows

Most UFO sightings by state from 2001-2015

Woman captures video of 'UFO' over Kiawah Island

Spaceship? Flying saucer? UFO? Altocumulus lenticularis - ABC News

History's Most Infamous UFO Sightings of the Modern Era - HISTORY

I'm not a nut': Woman who filmed 'beautiful red sphere' off SC coast says it was UFO

Some baffled after UFO sighting claims in Lafayette – The Denver Post

UFO over Woodlake? | KMPH

I'm not a nut': Woman who filmed 'beautiful red sphere' off SC coast says it was UFO

UFO sightings in Manitoba date back to 1792 | CBC News

SECRET UFO in Red Dead Redemption 2 (RDR2 Aliens & UFO Mystery) - YouTube

The Navy Just Released UFO Videos That Demand Another Look

Unidentified red orbs spotted off our coast | WCTI

UFO on Google Street View?

Is it a bird, a plane, a UFO? It's a...red sprite- All Images | NSF - National Science Foundation

Red cloud' seen off East Coast has logical NASA explanation | Raleigh News & Observer