phdoofus t1_ixiapx7 wrote
Reply to comment by UniversalMomentum in Lopsided star cluster may disprove Newton and Einstein, controversial new study claims. An uneven distribution of stars in several nearby clusters may offer evidence of MOND — a controversial theory of gravity that disputes Newton and rejects the existence of dark matter. by nimobo
The people trying to find weirdness in the laws of gravity have been trying since at least the 80s whereas Einstein keeps getting proven right time and again in ever more extreme circumstances.
Dave10293847 t1_ixj3bmu wrote
Is he proven right though? Or is he just the closest to the right answer. Again, dark matter and energy haven’t been observed. We just know without adding them to the formulas, galaxies don’t stay together. So it’s either he was wrong, or we still need to “find” extra matter that we can’t see.
phdoofus t1_ixjauyi wrote
When their theories keep getting ruled out by measurements, e.g. gravity wave speeds, etc, then you have to wonder if they're not on the wrong track. Even current modified newtonian gravity theories still require dark matter to match observation.
Dave10293847 t1_ixjbp0h wrote
No doubt. I just don’t like the demeanor levied against Newtonian doubters. This isn’t a flat earth situation where it’s frankly just not debatable. There’s real questions as to our understanding of physics when we get to the scope of galaxies and larger.
It is possible that dark matter doesn’t exist and we missed something. (Not saying you in particular are shaming, just making a point.)
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