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extraterrestrial hypothesis
Also known as: extraterrestrial UFO hypothesis, extraterrestrial intelligence hypothesis, ETH
Facts (17)
Sources
How the Pentagon Started Taking U.F.O.s Seriously | The New Yorker newyorker.com Apr 30, 2021 8 facts
accountProject Sign investigators filed a top-secret memorandum titled 'Estimate of the Situation' which leaned in favor of the extraterrestrial hypothesis regarding unidentified flying objects.
claimProject Sign investigators filed a top-secret memorandum titled 'Estimate of the Situation' which leaned in favor of the extraterrestrial hypothesis regarding unidentified flying objects.
claimThe COMETA report determined that 'the extraterrestrial hypothesis' was the most logical explanation for the small percentage of U.F.O. sightings that could not be explained by other means.
claimCOMETA concluded that while most U.F.O. sightings had earthly or meteorological origins, a small percentage appeared to be unknown flying machines with exceptional performance guided by natural or artificial intelligence, leading the group to propose the 'extraterrestrial hypothesis' as the most logical explanation.
claimCOMETA determined through a process of elimination that the 'extraterrestrial hypothesis' was the most logical explanation for the U.F.O. sightings analyzed in their report.
claimThe COMETA group determined that the "extraterrestrial hypothesis" was the most logical explanation for UFO sightings after using a process of elimination.
claimThe COMETA report concluded that while the vast majority of U.F.O. sightings could be traced to meteorological or earthly origins, a small percentage appeared to involve "completely unknown flying machines with exceptional performances that are guided by a natural or artificial intelligence," leading the authors to determine that "the extraterrestrial hypothesis" was the most logical explanation.
claimProject Sign investigators filed a top-secret 'Estimate of the Situation' memorandum that leaned in favor of the extraterrestrial hypothesis regarding U.F.O. sightings.
Unidentified flying object - Wikipedia en.wikipedia.org 3 facts
perspectiveSteven Novella asserts that UFO enthusiasts engage in special pleading by offering outlandish and untested explanations to support the extraterrestrial hypothesis, which violates the principle of Occam's razor.
perspectiveSteven Novella argues that while proponents of the extraterrestrial hypothesis suggest unexplained UFO reports are alien spacecraft, the null hypothesis—that these reports are prosaic phenomena unidentified due to incomplete information or report subjectivity—cannot be excluded.
claimA study suggests that the rudimentary standard of science communication regarding the extraterrestrial intelligence hypothesis for UFOs inhibits public understanding of science, dissuades academic inquiry, and undermines progressive space policy initiatives.
Disclosure movement - Wikipedia en.wikipedia.org 3 facts
claimThe extraterrestrial UFO hypothesis proposes that some UFOs are physical spacecraft occupied by intelligent extraterrestrial organisms from other planets, or probes designed by extraterrestrials.
claimLeslie Kean argues that the hypothesis that UFOs are of extraterrestrial or interdimensional origin is a rational one that must be taken into account given existing data.
claimThe extraterrestrial UFO hypothesis proposes that some UFOs are physical spacecraft occupied by intelligent extraterrestrial organisms from other planets or probes designed by extraterrestrials.
Disclosure or deception? New UFO Pentagon office divides believers nbcnews.com Jan 8, 2022 2 facts
claimMick West argues that recent legislation regarding UFOs reflects the concerns of individuals who believe in the extraterrestrial hypothesis.
claimMick West asserts that the military is being forced to perform unnecessary tasks due to the influence of extraterrestrial hypothesis believers on UFO legislation.
Ufology: From Fringe to Mainstream to Fringe? - Skeptic Magazine skeptic.com Feb 20, 2026 1 fact
claimDavid Grusch stated that the use of the term "non-human intelligence" leaves the door open for possibilities other than the extraterrestrial hypothesis.