[ExI] dark matter

[Anton Sherwood]

On 2021-8-10 14:17, Adrian Tymes via extropy-chat wrote:
> I keep wondering if the concept of dark matter is ultimately just 
> patching over some measurement errors.

I've heard of a place where measurement of g-lensing around a pair of 
colliding galaxies shows that normal matter was slowed by the collision 
(gas friction) but dark matter was not; that is, the mass whose gravity 
affects the light of further galaxies is not only *more* than the 
visible matter, it's in different places.

-- 
*\\*  Anton Sherwood  *\\*  www.bendwavy.org