Jan 17, 2018
Jun 8, 2017
I still wonder if dark matter is a mathematical error, or simply that we haven’t discovered all the normal mass of galaxies. Or perhaps difference forces than those assumed, such as electromagnetic..For example, in the time this comic was written, the MW Galaxy was estimated to have 100 billion stars. At the time, the claim for dark matter was that the galaxy didn’t have enough mass to hold together, having 10% of that assumed to be required..In the intervening years, better detection using infrared and other wavelengths has increased that to 200, then 400, now 1 trillion stars. Given what’s happened, it’s like that..While mostly dwarf stars, that increase in mass accounts for most of the 90% “missing mass” already.