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It's been relatively agreed upon that dark matter can't interact with itself very much either, since it forms a spherical cloud around galaxies instead of the m
by windsurfer 7y ago
It's been relatively agreed upon that dark matter can't interact with itself very much either, since it forms a spherical cloud around galaxies instead of the more expected disk shape, and dark matter clouds passing by each other don't seem to slow down or be affected in ways other than gravitation. More info: https://www.space.com/40219-dark-matter-feels-only-gravity-maybe.html https://www.space.com/40219-dark-matter-feels-only-gravity-m...
- knzhou 7y agoIndeed, it's possible that dark matter has no interactions with itself. But also, a little bit of interaction makes the detailed galaxy stuff come out a bit better, so the jury's out on it.
- JohnJamesRambo 7y agoIt’s ok it’s likely the 30 under 30 don’t affect each other either.