• el_twitto@lemmy.zip
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    9 hours ago

    Pluto is only 68% of the size of the Earth’s moon. It is only about 2.5 times larger than Ceres, the largest asteroid in our solar system.

    A large part of science is refining your understanding as contradictory evidence is found. I used to think Pluto should be a planet, and even met Clyde Tombaugh once, but I have absolutely no concerns about Pluto being reclassified as a dwarf planet. It is just a label and our understanding evolves.

      • BradleyUffner@lemmy.world
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        11 hours ago

        It rejects science and calls back to “back in my day” folksy rhetoric as the only “evidence” that it should regain planetary status, and frames the entire change as a bureaucratic process being run by out of touch elites. It’s conservative populism at it’s finest. Straight out of their playbook.

  • NigelFrobisher@aussie.zone
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    2 days ago

    The argument that Pluto would be a planet if it were in a different orbital track is pretty disingenuous, because in a different orbital track it might also be a moon of Jupiter or just flung out into interstellar space.

    • maso@lemmus.org
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      1 day ago

      I think the argument was more of proposing that the definition of its own orbital track is not informative of anything of the body itself but instead only of what is surrounding the object. The argument seems to be an extension of the planetary scientist school of thought (definition of planet should describe planet) vs the astronomical side (name describes motion/in relation to its surroundings)

  • TheJesusaurus@piefed.ca
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    2 days ago

    Either we now have to learn like 21 planets in elementary school (hard) or Pluto gets a technical demotion (easy).

    Pluto is still a planet in all our hearts, this is just humanities constant march of trying to become more and more accurate and precise with time

    • SnoopSqueak@lemmy.today
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      2 days ago

      Pluto is still a planet in all our hearts

      My heart pumps blood. My brain does the thinking. Pluto is not a planet. So what? It’s still fascinating.

      Pluto and Charon are tidally locked, meaning they always face each other as they orbit around. Romanticizing a bit, they are like dancers.

      https://www.youtube.com/watch?v=bU5pQWQRxak

      I’m your moon, you’re my moon,

      We go round and round.

      From out here, it’s the rest of the world that looks so small.

      Promise me you will always remember who you are.

      Labels can be helpful for categorizing, organizing our knowledge. Labels do not define us. We’re all space stuff.

  • acosmichippo@lemmy.world
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    2 days ago

    More recently, the campaign has taken on a populist tinge, with Trump’s Nasa administrator, Jared Isaacman, telling a congressional committee in April that he was in favour of a rethink. “I am very much in the camp of Make Pluto a Planet Again,” he said.

    I think this says all that needs to be said about it.

  • HubertManne@piefed.social
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    2 days ago

    no. I really wish non scientists would stay out of details like what is actual medicine or classification of astronimical objects.

    • ElDuderino@lemmus.org
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      2 days ago

      I’m no scientist, but it’s a pretty obvious no if you understand the reason it’s no longer considered a planet.

      • HubertManne@piefed.social
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        2 days ago

        oh yeah and me to but I have been technically a scientist at times. Still many people can understand it but some I don’t think even want to. They want to hand wave it away and go with their feelings about what should be a planet.

    • VitoRobles@lemmy.today
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      2 days ago

      Didn’t china now have a law where any chucklefuck without a degree can’t talk about science or medicine on social media to curb dipshit takes?

    • 🌸𝓯𝓵𝓸𝔀𝓮𝓻🌸@sh.itjust.works
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      2 days ago

      Orbits the sun, has enough gravity to form a sphere and has cleared it’s orbit. It’s the clearing the orbit part where Pluto fails, as do Ceres, Haumea, Makemake, and Eris. And also Quaoar, Orcus, Ixion, Varuna, Sedna, Gonggong, Salacia, Varda, Hygiea and Vesta. They all orbit in basically an asteroid field.

      • AbouBenAdhem@lemmy.world
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        2 days ago

        Do the Trojan asteroid clusters in Jupiter’s L4 and L5 points still count as “clearing its orbit”?

        What if there were a second planet-sized body there?

        • spartanatreyu@programming.dev
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          2 days ago

          Do the Trojan asteroid clusters in Jupiter’s L4 and L5 points still count as “clearing its orbit”?

          What if there were a second planet-sized body there?

          I would say in that example:

          • Jupiter is the dominant mass making it be the planet.
          • Anything in the Lagrangian points would not be planets specifically because anything in those points are there because of Jupiter and its orbit, not in spite of it.
        • Rhaedas@fedia.io
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          2 days ago

          Clearing the orbit is a very shorthand version of the meaning. If it was literal, nothing could be a planet as there’s always something in every orbital path. It means the planet is massive enough to be the dominant thing within its orbit.

            • Rhaedas@fedia.io
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              2 days ago

              Mercury is an interesting case. While there are some moons that are larger than it, they aren’t nearly as dense. Its surface gravity is only a little less than Mars, even though its smaller in size, so it has potential for orbital domination. The Sun certainly helps in keeping other objects clear, but that shouldn’t be part of the equation, if Mercury qualifies as a planet it should be able to do it in any orbit. I wonder if you put Mercury where Ceres is and ran for a few millennia what would happen?

  • treadful@lemmy.zip
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    2 days ago

    More recently, the campaign has taken on a populist tinge, with Trump’s Nasa administrator, Jared Isaacman, telling a congressional committee in April that he was in favour of a rethink. “I am very much in the camp of Make Pluto a Planet Again,” he said.

    nobody cares about your opinion