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andreasbeer1981 t1_iuadk1d wrote

Reply to comment by exscape in Is dark matter orbiting galaxies with the same speed as normal matter? by taracus

well, there is no proof that dark matter even exists. this is why it makes sense to make all kinds of experiments to find out more.

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CrashCalamity t1_iuc7p4y wrote

Consider: Dark matter is something of a "placeholder name" as it pertains to a theory to explain certain anomalous (yet repeatably measureable) results in astrophysics. Something is causing it, but we need to figure out what and how.

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