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A comment on A Physicist Who Denies Dark Matter. Parent comment

Re:A Physicist Who Denies Dark Matter by hwillis on Saturday May 20, 2017 @11:06AM (#14382700)
Dark matter isn't just dark, it doesn't interact with normal matter. When galaxies collide when can verify via gravitational lensing that the normal matter smashes together while the dark matter continues unimpeded in straight lines through each other.
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Re:A Physicist Who Denies Dark Matter by marcosdumay on Saturday May 20, 2017 @03:56PM (#14384067)
Stars also don't interact with other stars that way. AFAIK, the bullet cluster is not evidence for WIMPs.
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Re:A Physicist Who Denies Dark Matter by hwillis on Saturday May 20, 2017 @04:34PM (#14384210)
you're correct, but it is very strong evidence for dark matter in general.
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Re:A Physicist Who Denies Dark Matter by marcosdumay on Saturday May 20, 2017 @05:12PM (#14384382)
Yes, but the Dyson spheres the GP talks about are "dark matter in general". Evidence for WIMPs are elsewhere.
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