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Tyche / ˈ t aɪ k i / was a hypothetical gas giant located in the Solar System's Oort cloud, first proposed in 1999 by astrophysicists John Matese, Patrick Whitman and Daniel Whitmire of the University of Louisiana at Lafayette.
The orbit is predicted to be anti-aligned to the clustered extreme trans-Neptunian ... Tyche was a hypothetical gas giant proposed to be located in the Solar System's ...
The Fifth Giant is a hypothetical fifth giant planet originally in an orbit between Saturn and Uranus but was ejected from the Solar System into interstellar space after a close encounter with Jupiter, resulting in a rapid divergence of Jupiter's and Saturn's orbit which may have ensured the orbital stability of the terrestrial planets in the ...
Its orbit was expected to bring it within 0.429 AU (64,200,000 km; 39,900,000 mi) of Earth on December 26, 2013. [110] Nonetheless, believers tied it to the Nibiru cataclysm, claiming it would hit Earth on that date, or that it would fragment and pieces of it would hit Earth. [ 24 ]
Tycho Brahe (/ ˈ t aɪ k oʊ ˈ b r ɑː (h) i,-ˈ b r ɑː (h ə)/ TY-koh BRAH-(h)ee, - BRAH(-hə), Danish: [ˈtsʰykʰo ˈpʁɑːə] ⓘ; born Tyge Ottesen Brahe, Danish: [ˈtsʰyːjə ˈʌtəsn̩ ˈpʁɑːə]; [note 1] 14 December 1546 – 24 October 1601), generally called Tycho for short, was a Danish astronomer of the Renaissance, known for his comprehensive and unprecedentedly ...
Nemesis is a hypothetical red dwarf [1] or brown dwarf, [2] originally postulated in 1984 [3] to be orbiting the Sun at a distance of about 95,000 AU (1.5 light-years), [2] somewhat beyond the Oort cloud, to explain a perceived cycle of mass extinctions in the geological record, which seem to occur more often at intervals of 26 million years.
The150kg satellite, Tyche, was launched on Friday from a rocket owned by Elon Musk’s SpaceX company.
[3] [16] [33] [46] Another variation on the rogue planet motif involves planets in the Solar System leaving their orbit around the Sun and becoming rogue planets drifting through space, as happens to the Earth by chance in Fritz Leiber's 1951 short story "A Pail of Air" and by design in Liu Cixin's 2000 short story "The Wandering Earth" and its ...