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RegularJoe@lemmy.world to science@lemmy.worldEnglish · 2 days ago

'Planet Y' theory hints at hidden Earth-size world lurking in the solar system — and it could be much closer to us than 'Planet Nine'

www.livescience.com

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'Planet Y' theory hints at hidden Earth-size world lurking in the solar system — and it could be much closer to us than 'Planet Nine'

www.livescience.com

RegularJoe@lemmy.world to science@lemmy.worldEnglish · 2 days ago
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A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth than the hypothetical Planet X, which astronomers have been hunting for almost a decade. However, the evidence for this newly theorized world is "not definitive."
  • 0x0@lemmy.zip
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    2 days ago

    Isn’t planet nine Uranus?

    • Akt0@reddthat.com
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      2 days ago

      Uranus is the 7th planet, followed by Neptune.

      Wikipedia on Planet 9

      edit: added Planet 9 article

    • RegularJoe@lemmy.worldOP
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      2 days ago

      1 Mercury.

      2 Venus.

      3 Earth.

      4 Mars.

      5 Jupiter.

      6 Saturn.

      7 Uranus.

      8 Neptune.

      • Victor@lemmy.world
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        2 days ago

        No no, it’s Mercury, Venus, Mars, Jupiter, Saturn, The Sun, and The Moon. The seven planets, and days of the week.

        — Ancient People

        • WoodScientist@lemmy.world
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          1 day ago

          Happy Day of Odin to you!

          • Victor@lemmy.world
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            1 day ago

            Same to you, fellow!

      • LifeInMultipleChoice@lemmy.world
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        2 days ago

        I love the ever permanent comet in that image. I like to think it somehow has a tail, yet sits in orbit

        • Blue_Morpho@lemmy.world
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          2 days ago

          All planets have elliptical orbits just like periodic comets. Comets’ elliptic is just more extreme.

          Mercury, Mars and Venus have tails, they just aren’t as visible.

          • LifeInMultipleChoice@lemmy.world
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            2 days ago

            While I understand they are all elliptical, isn’t that the reason they moved Pluto to a dwarf planet, because it’s orbit was “to elliptical” and crossing Neptune’s orbital path?

            • AA5B@lemmy.world
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              2 days ago

              Plus there are other additional bodies similar to Pluto that didn’t make sense to call planets

              • https://en.wikipedia.org/wiki/Dwarf_planet
            • Björn@swg-empire.de
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              2 days ago

              Its orbit is also at a considerable angle relative to the plane all other planets orbit in. That alone made me question it’s planet-ness long before it got demoted. And I felt really validated when Jim Carrey’s kids in Me, Myself and Irene argued about Pluto being a planet or not.

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