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Proper names of planetary systems often follow common themes – for example, the planets of the star Copernicus are named after European astronomers. Proper names for planets outside of the Solar System – known as exoplanets – are chosen by the International Astronomical Union (IAU) through public naming contests known as NameExoWorlds.
This is a list of fictional galactic communities who are space-faring, in contact with one or more space-faring civilizations or are part of a larger government, coalition, republic, organization or alliance of two or more separate space-faring civilizations.
Planets themselves being portrayed as alive, while relatively rare (especially compared to stars receiving the same treatment), is a recurring theme. [1] [38] Sentient planets appear in Ray Bradbury's 1951 short story "Here There Be Tygers", Stanisław Lem's 1961 novel Solaris, and Terry Pratchett's 1976 novel The Dark Side of the Sun.
The exoplanet naming convention is an extension of the system used for naming multiple-star systems as adopted by the International Astronomical Union (IAU). For exoplanets orbiting a single star, the name is normally formed by taking the name of its parent star and adding a lowercase letter. A provisional IAU-sanctioned standard exists to ...
An exoplanet or extrasolar planet is a planet outside the Solar System. The first possible evidence of an exoplanet was noted in 1917 but was not then recognized as such. The first confirmation of the detection occurred in 1992. A different planet, first detected in 1988, was confirmed in 2003.
Nemesis – Hypothetical star orbiting the Sun, supposedly responsible for extinction events. Planet Nine – Hypothetical Solar System planet. Theia – Planet hypothesized to have impacted Earth and created the Moon. Tyche – Hypothetical gas giant in the Oort cloud. Planetary objects proposed in religion, astrology, ufology and pseudoscience.
The special chemicals in the warhead reacted in the planet's core, destabilizing the planet. Mass Shadow Generator (EU): Used the gravity of a planet to create a quantum singularity, de-stabilizing the planet. Eclipse-class dreadnought (EU): A Super Star Destroyer armed with a less-powerful version of the Death Star superlaser.
KOI-1686.01 was also considered a potentially habitable exoplanet after its detection in 2011, until proven a false positive by NASA in 2015. [ 72] Several other KOIs, like Kepler-577b and Kepler-1649b, were considered potentially habitable prior to confirmation, but with new data are no longer considered habitable.