According to the scale developed by astronomer and UFO researcher J. Allen Hynek in 1972, which type of close encounter, if any, do you think mankind will witness before the end of the 21st century?
Evidence of extraterrestrial existence through identification of an artificial, coherent signal with a radio telescope, distinct from the background of various natural phenomena that also produce radio waves.
Visual sightings of an unidentified flying object seemingly less than 500 feet away that show an appreciable angular extension and considerable detail.
A UFO event in which a physical effect is alleged. This can be interference in the functioning of a vehicle or electronic device; animals reacting; a physiological effect such as paralysis or heat and discomfort in the witness; or some physical trace like impressions in the ground, scorched or otherwise affected vegetation, or a chemical trace.
UFO encounters in which an animated creature is present. These include humanoids, robots, and humans who seem to be occupants or pilots of a UFO.
A UFO event in which a human is abducted by a UFO or its occupants.
A UFO event that involves direct communication between aliens and humans. Bilateral contact experiences through conscious, voluntary and proactive human-initiated cooperative communication with extraterrestrial intelligence.
Death of a human or animal associated with a UFO sighting.
The creation of a human/alien hybrid, either by sexual reproduction or by artificial scientific methods.
We're alone out there or any form of extraterrestrial intelligence in the universe is too remote from Earth to establish contact in the next 80+ years.
