Entry updated 10 May 2019. Tagged: Theme.
This encyclopedia deals with sf about our Solar System under the following headwords, moving conventionally outward from the Sun (see also Stars for a more general treatment of suns). There are individual entries for Mercury, Venus, the Moon but not the Earth itself – though certain aspects are discussed under Gaia – Mars, the Asteroids, Jupiter, the Outer Planets (comprising Saturn, Uranus, Neptune, the now-demoted Pluto, assorted moons and the frequently imagined "tenth planet", often a subject of real-world speculation) and Comets. Rather more speculative are Vulcan, once imagined as located within the orbit of Mercury, and the orbitally impossible Counter-Earth, supposedly sharing Earth's orbit but always remaining hidden on the far side of the Sun. [DRL]
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