8 Black Holes and General Relativity Stuff that warps your mind.
Dark Matter! First clue came way back in the 1930’s. Fritz Zwicky studied the motions of galaxies in the Coma Cluster of galaxies – the nearest “relaxed”
Cosmic Times Astronomy History and Science for the Classroom Dr. Jim Lochner (USRA/GSFC) Dr. Barb Mattson (Adnet/GSFC) NSTA, Philadelphia, March 21, 2010.
11 Black Holes and General Relativity Stuff that warps your mind.
