• fodor@lemmy.zip
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    10 days ago

    That’s a definitional question, though, is it not? I don’t think any facts actually changed.

    • JackbyDev@programming.dev
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      10 days ago

      Yes. Ceres was considered a planet when discovered in 1801 and around the 1950s began to be classified as an asteroid. It is now considered a dwarf planet like Pluto. It’s the largest thing in the asteroid belt but is still sort of planet shaped.

    • ghen@sh.itjust.works
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      10 days ago

      Okay then maybe the electron shells model of an atom. That was taught as fact and it’s definitely not true even though it’s still useful