this post was submitted on 27 Sep 2023
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If an anti-gravity particle does exist (that expels both normal mass and itself), it would be incredibly hard to find.
They would push away from each other and disperse outside of the solar system.
Like 1 particle per 1000sq km kind of thing.
Which would push all the galaxies away from each other, always accelerating away from each other, but in a decreasing fashion....
It would also press inward on galaxies making it look like mass on the outer rims of galaxies having more gravity than they should.
And there would be a SHIT ton of this matter, that would be dark because it's so spread out,
..wait a minute ..
Fun theory, only if it holds some water..