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Although stellar parallax does exist, stars are too far away from Earth, more than Greeks considered, to be noticeable by the naked eye. [3] Plato (left) and Aristotle (right) opposed the idea of a plurality of worlds. The Greeks discussed as well the possible existence of other worlds, but did not consider the planets as such.
Extraterrestrial life forms might, for example, choose to allow contact once the human species has passed certain technological, political, and/or ethical standards. Alternatively, they may withhold contact until humans force contact upon them, possibly by sending a spacecraft to an extraterrestrial-inhabited planet. In this regard, reluctance ...
Many Young Earth creationists believe that non-avian dinosaurs coexisted with humans. [ 12 ] [ 13 ] Since Young Earth creationists believe the Earth to only be a few thousand years old, their worldview is incompatible with the scientific understanding of geological history and the fossil record.
What makes someone believe that aliens exist? Experts say there's more to it than many people think.
Much like how researchers believe humans mixed with Neanderthals in Eurasia before the Neanderthal went extinct, the study suggests that an “archaic hominin ghost population” could have ...
The question of whether other inhabited planets or moons exist was a natural consequence of this new understanding. It has become one of the most speculative questions in science and is a central theme of science fiction and popular culture. [4] An alternative name for it is "Extraterrestrial Technological Instantiations" (ETI).
The poll, inspired by the release of the new 'Jurassic World' movie, asked, "Do you believe that dinosaurs and humans once lived on the planet at the same time?" Of the 1,000 people who were ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 6 March 2025. Discrepancy of the lack of evidence for alien life despite its apparent likelihood This article is about the absence of clear evidence of extraterrestrial life. For a type of estimation problem, see Fermi problem. Enrico Fermi (Los Alamos 1945) The Fermi paradox is the discrepancy between ...