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Can you think of any now? (piefed.cdn.blahaj.zone)
submitted 1 month ago by LadyButterfly@piefed.blahaj.zone to c/science_memes@mander.xyz
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[-] fodor@lemmy.zip 4 points 4 weeks ago

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

[-] JackbyDev@programming.dev 2 points 4 weeks 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 1 points 4 weeks 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

this post was submitted on 23 Sep 2025
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