Index of ufology articles

This is a list of topics studied in the field of Ufology.

• Ancient astronaut theories
• Aura
• Close encounter
• Crop circle
• Extraterrestrial hypothesis (ETH)
• Identified flying object (IFO)
• Interdimensional hypothesis
• Interplanetary Phenomenon Unit (IPU)
• Military flying saucers
• Missing time
• Post-abduction syndrome
• Psychosocial Hypothesis
• Unidentified flying object (UFO)
• Unidentified submerged object (USO)
• Xenoarchaeology
• Zoo hypothesis

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