Rethinking UFOs: Terrestrial Explanations, Exoplanet Life, and the Limits of Evidence

To the point

There's no solid proof aliens have visited Earth, most UFOs are likely military or ordinary phenomena, life on other planets is possible but interstellar travel would be extremely difficult, and secrecy around advanced tech supports earthly explanations.

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Rethinking UFOs: Terrestrial Explanations, Exoplanet Life, and the Limits of Evidence

There is no compelling evidence of alien visitation; UFOs are more plausibly military aircraft, secrecy around advanced programs makes terrestrial explanations likelier than extraterrestrial ones, the vast number of stars keeps life on exoplanets plausible though contact remains uncertain, interstellar travel would be extraordinarily difficult, and an edit clarifies that no evidence currently proves alien visitation while most UFO sightings are likely due to mundane factors.