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Home / News / Science News / Caltech scientists say Planet X exists
  • Science

    Caltech scientists say Planet X exists

    Shiladitya Ray
    Written by
    Shiladitya Ray
    Mail
    Last updated on Jan 21, 2016, 10:54 pm
    Caltech scientists say Planet X exists
    Credits:
  • According to respected planetary scientists Konstantin Batygin and Mike Brown of the California Institute of Technology (Caltech), evidence points to the existence of a ninth planet in the solar system.

    Scientists had been in search of the mythical Planet X, as it is popularly dubbed, for over a 100 years without any success.

    However, Brown added, "This is different because this time we're right."

  • In this article
    The 100 year old hunt for Planet X Michael Brown, the planet slayer Who is Konstantin Batygin? Why do scientists believe that Planet X exists? Brown's method of planet detection So what could Planet X be like? Caltech scientists say Planet X exists The renewed hunt for Planet X
  • Origins

    The 100 year old hunt for Planet X

    The 100 year old hunt for Planet X
    Credits:
  • After the discovery of Neptune in 1846, irregularities in Uranus' orbit led scientists to believe that there could be a giant planet somewhere in the far reaches of the solar system.

    In 1906, American tycoon Percival Lowell began the search for "Planet X" from his observatory in Flagstaff, Arizona.

    In spite of no results, the hunt for Planet X continued well into the 1990s.

  • Brown

    Michael Brown, the planet slayer

    Michael Brown, the planet slayer
    Credits:
  • Michael E. Brown, born 5 June 1965, is famous for his role in stripping Pluto of its status as a planet.

    In 2005, Brown discovered Eris, a trans-Neptunian object roughly the size of Pluto.

    Brown concluded that Pluto was just one of the many small, icy worlds found in the Kuiper Belt region beyond Neptune, following which Pluto was reclassified as a dwarf planet.

  • Batygin

    Who is Konstantin Batygin?

    Who is Konstantin Batygin?
    Credits:
  • Konstantin Batygin is a computer modeler and Assistant Professor of Planetary Sciences at Caltech.

    While in college, Batygin modeled the fate of the solar system over billions of years and showed that, in rare cases, the solar system was unstable.

    His achievement brought him recognition, and he made the 2015 Forbes list of 30 scientists under 30 who were changing the world.

  • Calculations

    Why do scientists believe that Planet X exists?

    Why do scientists believe that Planet X exists?
    Credits:
  • Brown and Batygin inferred the existence of Planet X by observing the peculiar clustering of six objects that orbit beyond Neptune.

    They calculated that there was only a 0.007% chance that the clustering could be a coincidence.

    The existence of a giant planet's gravitational pull would explain the clustering of objects in strange elliptical orbits titled out of the plane of the solar system.

  • Do you know?

    Brown's method of planet detection

  • Brown's method - inferring the existence of Planet X from its gravitational effects - is quite successful. In 1846, Urbain Le Verrier predicted the existence of a planet beyond Uranus using the same technique. The planet discovered was Neptune.

  • Planet

    So what could Planet X be like?

    So what could Planet X be like?
    Credits:
  • According to calculations, Planet X is expected to be 10 times the mass of the earth with a highly elliptical orbit.

    The closest it comes to the sun is 15 times the distance to Pluto, and it then heads into uncharted territory 93 billion miles from the sun.

    According to projections, it takes Planet X a staggering 10,000-20,000 years to orbit the sun once.

  • 22 Jan 2016

    Caltech scientists say Planet X exists

    Caltech scientists say Planet X exists
    Credits:
  • According to respected planetary scientists Konstantin Batygin and Mike Brown of the California Institute of Technology (Caltech), evidence points to the existence of a ninth planet in the solar system.

    Scientists had been in search of the mythical Planet X, as it is popularly dubbed, for over a 100 years without any success.

    However, Brown added, "This is different because this time we're right."

  • Implications

    The renewed hunt for Planet X

    The renewed hunt for Planet X
    Credits:
  • Brown and Batygin's study has rekindled the scientific community's interest in Planet X.

    Subaru, an 8-meter Japanese telescope in Hawaii with enough light gathering capabilities to detect a faint object like a planet, is currently being used to look for Planet X.

    Brown says it will take around 5 years to search most of the area where Planet X is suspected to be lurking.

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