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  2. Tyche (hypothetical planet) - Wikipedia

    en.wikipedia.org/wiki/Tyche_(hypothetical_planet)

    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.

  3. HD 63433 d - Wikipedia

    en.wikipedia.org/wiki/HD_63433_d

    It was the third (and most recent) exoplanet to be discovered in orbit around this star; the other two, HD 63433 b and c, were discovered in 2020. [ 1 ] [ 4 ] Orbiting its star at a distance of 0.0503 astronomical units (7,520,000 km), HD 63433 d is the innermost planet orbiting HD 63433, and completes an orbit around it just every 4 days. [ 1 ]

  4. List of hypothetical Solar System objects - Wikipedia

    en.wikipedia.org/wiki/List_of_hypothetical_Solar...

    Counter-Earth, a planet situated on the other side of the Sun from that of the Earth. Fifth planet (hypothetical), historical speculation about a planet between the orbits of Mars and Jupiter. Phaeton, a planet situated between the orbits of Mars and Jupiter whose destruction supposedly led to the formation of the asteroid belt. This hypothesis ...

  5. Scientists say they have found evidence of an unknown planet ...

    www.aol.com/news/scientists-found-evidence...

    Scientists say they have found new evidence that there is a hidden planet in our solar system. For years, some astronomers have been suggesting that unusual behaviour on the edge of our solar ...

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  7. TOI-1338 b - Wikipedia

    en.wikipedia.org/wiki/TOI-1338_b

    TOI-1338 b is a gas giant circumbinary exoplanet in the constellation Pictor, orbiting around the binary star system TOI-1338.First identified by then-17-year-old Wolf Cukier, it was the first circumbinary planet discovered by the Transiting Exoplanet Survey Satellite (TESS). [4]

  8. Two new planets bigger than Earth possibly found in our solar ...

    www.aol.com/news/2015-01-21-two-new-planets...

    By RYAN GORMAN Scientists may have found Planet X -- the long-rumored object believed to be larger than Earth and further from the sun than Pluto. Planet X and another object dubbed "Planet Y ...

  9. TOI-1431 b - Wikipedia

    en.wikipedia.org/wiki/TOI-1431_b

    This extrasolar-planet-related article is a stub. You can help Wikipedia by expanding it.