Dark Matter

I had a PBL about this at Marianopolis College.

Links: file:///Users/stevengong/My%20Drive/Archive/Marianopolis%20College/Winter2021/Honors/PBL_-Vinet-_Dark_Matter/Rubin-Dark-Matter.pdf

file:///Users/stevengong/My%20Drive/Archive/Marianopolis%20College/Winter2021/Honors/PBL_-Vinet-_Dark_Matter/2006_Physics_Today_Vera_Rubin_vol59no12p8_9.pdf

file:///Users/stevengong/My%20Drive/Archive/Marianopolis%20College/Winter2021/Honors/PBL_-Vinet-_Dark_Matter/rubin1970.pdf