A hypothetical planet or hypothetical planetary object is a planet or similar body whose existence is not proven, but is speculated on by some.
- For hypothetical planets in the Solar System, see: List of hypothetical Solar System objects
- For hypothetical extrasolar planets see: List of unconfirmed extrasolar planets
- For hypothetical planets in fiction see: Fictional planets of the Solar System
- For planets whose existence is not accepted by science see: Planetary objects proposed in religion, astrology, ufology and pseudoscience
Famous quotes containing the word planet:
“Have you not budged an inch, then? Such is the daily news. Its facts appear to float in the atmosphere.... We should wash ourselves clean of such news. Of what consequence, though our planet explode, if there is no character involved in the explosion? In health we have not the least curiosity about such events. We do not live for idle amusement. I would not run round a corner to see the world blow up.”
—Henry David Thoreau (1817–1862)
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