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A galaxy is small compared to the Universe, so why would it be difficult to imagine that some of the galaxies were formed in regions devoid of dark matter?
by Koshkin 5y ago
A galaxy is small compared to the Universe, so why would it be difficult to imagine that some of the galaxies were formed in regions devoid of dark matter?
- marcosdumay 5y agoBecause cosmology has a lot of evidence that the clusters of mater we have around were created by gravity alone, and gravity acts the same way on normal matter and dark matter. And if you expect a difference on particle genesis at the beginning of the Universe, it would be a major kind of anisotropy that is against much more than just the cosmology theories. Why is it so hard to accept that we may have no good theory for explaining a galaxy without dark matter?
- Koshkin 5y agoDark matter is not required for the formation of a galaxy, so amongst trillions of galaxies there may be some that have none inside them?