Extraterrestrial hypothesis Guide, Meaning , Facts, Information and Description
The Extraterrestrial Hypothesis (sometimes shortened to ETH) is the notion that UFO reports are best explained as extraterrestrial craft or creatures visiting Earth.The ETH is vital to most versions of UFO Abduction reports.
Some Ufologists accept the hypothesis, but others do not.
Detractors have dubbed ETH the "Extremely Tenuous Hypothesis."
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