this post was submitted on 28 Jan 2026
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Milky Way is embedded in a 'large-scale sheet' of dark matter, which explains motions of nearby galaxies (phys.org)
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[–] reddit_sux@lemmy.world 2 points 20 hours ago

Dark matter is like x and y in a quadratic equation in maths. We don't know what it is but we know it is there. It effecting the equation such that you are getting a result.

We know there is something, it is effecting the gravity around it to result the apparent motion of the stuff around it. But we don't know what it is or how it is working.