Alien Research

Ummo letters

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Ummo letters
Incident information




Aliens sighted

Aliens from the planet Ummo[1]


Hoax; started by psychologist Jose Luis Jordan Pena[1]

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The Ummo letters were a hoax series of letters which allegedly came from aliens from what is a fictional planet called Ummo. The letters were supposedly sent to Spaniards in the 1960's.[1]

The psychologist Jose Luis Jordan Pena admitted to starting the hoax.[1]


  1. 1.0 1.1 1.2 1.3 1.4 1.5 Tales of Horror: Aliens, Jim Pipe, page 18

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