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  2. Extraterrestrial life - Wikipedia

    en.wikipedia.org/wiki/Extraterrestrial_life

    The Rare Earth hypothesis maintains that life on Earth is possible because of a series of factors that range from the location in the galaxy and the configuration of the Solar System to local characteristics of the planet, and that it is unlikely that all such requirements are simultaneously met by another planet. The proponents of this ...

  3. List of hypothetical Solar System objects - Wikipedia

    en.wikipedia.org/wiki/List_of_hypothetical_Solar...

    Counter-Earth, a planet situated on the other side of the Sun from that of the Earth. Fifth planet (hypothetical), historical speculation about a planet between the orbits of Mars and Jupiter. Phaeton, a planet situated between the orbits of Mars and Jupiter whose destruction supposedly led to the formation of the asteroid belt. This hypothesis ...

  4. List of fictional elements, materials, isotopes and subatomic ...

    en.wikipedia.org/wiki/List_of_fictional_elements...

    First referenced in a 1989 issue of The Physics Teacher. [9] It was apparently discovered by the fictional Thomas Kyle, who was awarded an Ig Nobel Prize for physics for his discovery, [ 10 ] and it is a parody on bureaucracy of scientific establishments and on descriptions of newly discovered chemical elements .

  5. Interdimensional UFO hypothesis - Wikipedia

    en.wikipedia.org/wiki/Interdimensional_UFO...

    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 ...

  6. Speculative evolution - Wikipedia

    en.wikipedia.org/wiki/Speculative_evolution

    A speculative evolution project by Turkish artist C. M. Kosemen exploring the fictional planet of Snaiad and its lifeforms. Serina: A Natural History of the World of Birds. A speculative evolution project envisioning an alien planet in which all animals have descended from mundane and commonly-kept species, in particular the Common Canary.

  7. Space animal hypothesis - Wikipedia

    en.wikipedia.org/wiki/Space_animal_hypothesis

    Arthur Conan Doyle's 1913 short story "The Horror of the Heights" featured an aviator breaking an altitude record who discovered an "air jungle" full of translucent animals resembling jellyfish and snakes. [2] In September 1936, Ramond Z. Gallum's short story "A Beast of the Void" envisioned creatures capable of interstellar travel.

  8. Autostereogram - Wikipedia

    en.wikipedia.org/wiki/Autostereogram

    The well-known Magic Eye books feature another type of autostereogram called a random-dot autostereogram (see § Random-dot, below), similar to the first example, above. In this type of autostereogram, every pixel in the image is computed from a pattern strip and a depth map. A hidden 3D scene emerges when the image is viewed with the correct ...

  9. Little green men - Wikipedia

    en.wikipedia.org/wiki/Little_green_men

    Another example, and the earliest use of little green man in The New York Times and the Chicago Tribune, dates from 1902, in a review of a children's book called The Gift of the Magic Staff, where a supernatural "Little Green Man" is a boy's friend and helps him visit the cloudland fairies.