Comment on Pluto is still a planet, just a dwarf one

• bob_lemon@feddit.org ⁨5⁩ ⁨hours⁩ ago

  And the 2006 decimation of planet that made Pluto not a planet explicitly added “must not orbit another object” to stop the moon from being a planet.

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• ParlimentOfDoom@piefed.zip ⁨16⁩ ⁨hours⁩ ago

  And Titan is 6% bigger than Mercury.

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• mrsemi@lemmy.world ⁨1⁩ ⁨day⁩ ago

  in Asimov’s Foundation series, there is (was) a galaxy-spanning human civilization, but Earth was lost and mostly considered mythical. One of the arguments against it actually existing was the absurdity of such a double planet system existing. In the wider galaxy only giant planets had such large satellites.

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  • a_non_monotonic_function@lemmy.world ⁨1⁩ ⁨day⁩ ago

    In his books were they similarly absurdly tiny, rotating in irregular orbits well outside of their class of planets, and inhabiting an entire solar system of similarly sized unremarkable objects?

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