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"The idea of benign or hostile space aliens from other planets visiting the Earth [is clearly] an emotional idea. There are two sorts of self-deception here: either accepting the idea of extraterrestrial visitation by space aliens in the face of very meager evidence because we want it to be true; or rejecting such an idea out of hand, in the ...
Popular belief in thriving alien civilisations elsewhere in the solar system still remained strong until Mariner 4 and Mariner 9 provided close images of Mars, which debunked forever the idea of the existence of Martians and decreased the previous expectations of finding alien life in general. [140]
In February 2022, American futurist and science communicator Isaac Arthur discussed the odds against the time-traveler hypothesis on episode 23 Are Aliens Just Time Traveling Humans of the podcast It's Probably (not) Aliens, specifically debunking the concept as it was exposed on the ‘Time Travel’ episode of the Ancient Aliens series.
Download as PDF; Printable version; ... This is a timeline of space exploration which includes notable achievements, ... 10 May 1946: First space research flight ...
The interdimensional hypothesis is a proposal that unidentified flying object (UFO) sightings are the result of experiencing other "dimensions" that coexist separately alongside our own [1] in contrast with either the extraterrestrial hypothesis that suggests UFO sightings are caused by visitations from outside the Earth or the psychosocial hypothesis that argues UFO sightings are best ...
This is a timeline of science fiction as a literary tradition. While the date of the start of science fiction is debated, this list includes a range of ancient, medieval, and Renaissance-era precursors and proto-science fiction as well, as long as these examples include typical science fiction themes and topoi such as travel to outer space and encounter with alien life-forms.
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This is a timeline of Solar System exploration ordering events in the exploration of the Solar System by date of spacecraft launch. It includes: It includes: All spacecraft that have left Earth orbit for the purposes of Solar System exploration (or were launched with that intention but failed), including lunar probes .