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  2. Earth in science fiction - Wikipedia

    en.wikipedia.org/wiki/Earth_in_science_fiction

    The iconic photo of Earth known as The Blue Marble, taken by the crew of Apollo 17 (1972). This and similar images might have popularized Earth as a theme in fiction. [1]: 138 The overwhelming majority of fiction is set on or features the Earth, as the only planet home to humans or known to have life.

  3. Hollow Earth - Wikipedia

    en.wikipedia.org/wiki/Hollow_Earth

    The Hollow Earth is an obsolete concept proposing that the planet Earth is entirely hollow or contains a substantial interior space. Notably suggested by Edmond Halley in the late 17th century, the notion was disproven, first tentatively by Pierre Bouguer in 1740, then definitively by Charles Hutton in his Schiehallion experiment around 1774.

  4. Subterranean fiction - Wikipedia

    en.wikipedia.org/wiki/Subterranean_fiction

    Subterranean fiction is a subgenre of speculative fiction, science fiction, or fantasy which focuses on fictional underground settings, sometimes at the center of the Earth or otherwise deep below the surface. The genre is based on, and has in turn influenced, the Hollow Earth theory.

  5. Travel to the Earth's center - Wikipedia

    en.wikipedia.org/wiki/Travel_to_the_Earth's_center

    Earth cutaway from core to exosphere. Partially to scale. Travelling to the Earth's center is a popular theme in science fiction. Some subterranean fiction involves traveling to the Earth's center and finding either a hollow Earth or Earth's molten core. Planetary scientist David J. Stevenson suggested sending a probe to the core as a thought ...

  6. List of science fiction themes - Wikipedia

    en.wikipedia.org/wiki/List_of_science_fiction_themes

    Future of the Earth. Climate change—science fiction dealing with effects of anthropogenic climate change and global warming at the end of the Holocene era; Megacity; Pastoral science fictionscience fiction set in rural, bucolic, or agrarian worlds, either on Earth or on Earth-like planets, in which advanced technologies are downplayed.

  7. ‘Almost science fiction’ Of all Earth’s layers, the inner core is the most remote and mysterious. This solid sphere of iron and nickel is about 70% the size of the moon, with a radius of ...

  8. Mesklin - Wikipedia

    en.wikipedia.org/wiki/Mesklin

    Mesklin is a fictional planet created by Hal Clement and used in a number of his hard science fiction stories, starting with Mission of Gravity (1954). Alongside the novel's original 1953 serialization in Astounding Science Fiction, Clement published an essay titled "Whirligig World" detailing the process of designing the planet to have the properties he wanted.

  9. Cities in Flight - Wikipedia

    en.wikipedia.org/wiki/Cities_in_Flight

    Cities in Flight is a four-volume series of science fiction novels and short stories by American writer James Blish, originally published between 1950 and 1962, which were first known collectively as the "Okie" novels. The series features entire cities that are able to fly through space using an anti-gravity device, the spindizzy. The stories ...