>"Vera Florence Cooper Rubin (/ˈruːbɪn/; July 23, 1928 – December 25, 2016) was an American astronomer who pioneered work on galaxy rotation rates.[1][2] She un

>"Vera Florence Cooper Rubin (/ˈruːbɪn/; July 23, 1928 – December 25, 2016) was an American astronomer who pioneered work on galaxy rotation rates.[1][2] She uncovered the discrepancy between the predicted and observed angular motion of galaxies by studying galactic rotation curves." Related: https://www.google.com/search?q=angular+momentum+ice+skater&tbm=isch https://www.google.com/search?q=angular+momentum+ice+skater&... https://en.wikipedia.org/wiki/Angular_momentum https://en.wikipedia.org/wiki/Angular_momentum https://en.wikipedia.org/wiki/Galaxy_rotation_curve https://en.wikipedia.org/wiki/Galaxy_rotation_curve https://en.wikipedia.org/wiki/Noether%27s_theorem https://en.wikipedia.org/wiki/Noether%27s_theorem