From scifri https://twitter.com/scifri on Twitter: Most of the stuff in the universe is invisible dark matter, if our theories are correct. So why is it so hard to find? @RyanFMandelbaum, @FlipTanedo, & @profcooley are on #SciFriLive to discuss. https://www.sciencefriday.com/segments/dark-matter-eludes-particle-physicists/ https://twitter.com/scifri/status/1005152685358833664/photo/1 https://chirp.cooleysekula.net/attachment/51016