Term
Extraterrestrial Hypothesis (ETH)
The classic proposal that some UFOs are spacecraft from other worlds. Endorsed as 'most rational' for hard cases by France's COMETA report (1999); rejected as unevidenced by AARO (2024).
The classic proposal that some UFOs are spacecraft from other worlds. Endorsed as 'most rational' for hard cases by France's COMETA report (1999); rejected as unevidenced by AARO (2024).