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In 1952, papers speculated that flying saucers were "not carriers for the inhabitants of other planets" but rather that flying saucers "are the living creatures from another planet". [8] In 1953, Walter Karig speculated in American Weekly that the objects behaved more like "puppies" than spaceships.
Seed worlds, or seeded worlds, are another popular subset of the genre. It involves a terraformed planet or a habitable, yet uninhabited planet being "seeded" by already existing species of animals, plants and fungi, which will speciate in order to fill the different niches by adaptive radiation. The focus can be on one or multiple species, but ...
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 ...
Planet V, a planet thought by John Chambers and Jack Lissauer to have once existed between Mars and the asteroid belt, based on computer simulations. Various planets beyond Neptune: Planet Nine, a planet proposed to explain apparent alignments in the orbits of a number of distant trans-Neptunian objects. Planet X, a hypothetical planet beyond ...
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 .
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 ...
The need for the planet as an explanation for Mercury's orbital peculiarities was later rendered unnecessary when Einstein's 1915 theory of general relativity showed that Mercury's departure from an orbit predicted by Newtonian physics was explained by effects arising from the curvature of spacetime caused by the Sun's mass. [3] [4]
Energy shield from the game Second Life. In speculative fiction, a force field, sometimes known as an energy shield, force shield, energy bubble, or deflector shield, is a barrier produced by something like energy, negative energy, dark energy, electromagnetic fields, gravitational fields, electric fields, quantum fields, telekinetic fields, plasma, particles, radiation, solid light, magic, or ...