1. http://arxiv.org/pdf/astro-ph/0507619v1.pdf 2. http://arxiv.org/pdf/astro-ph/0602519.pdf Newton gravity might naively be expected to work well with no need to use full blown general relativity (GR) for galaxies. But the first paper claims that is not true! Actually they say you DO need to use GR, and they do in a small-G approximate form, and find much less "dark matter" is needed to explain a bunch of galaxies. In fact in some cases none needed? But the second paper claims the first paper had errors but agrees GR is needed and says GR reduces amount of dark matter needed by 33% vs Newton. This however still leaves us needing a huge amount dark matter. So the whole "dark matter" problem is not solved, but major pieces of stupidity allegedly have been revealed.