“The Galaxy That Revealed Dark Matter” –A ‘Sleeping Monster’ 2.5 Times Width of the Milky Way

  On a gorgeous clear night in 1968 at the Kitt Peak Observatory in the mountains of southern Arizona, astronomer Vera Rubin discovered the existence of dark matter by closely observing the spectra of stars in the Andromeda Galaxy to determine their velocities along with her her colleague, Kent Ford, to calculate how fast the … Continue reading “The Galaxy That Revealed Dark Matter” –A ‘Sleeping Monster’ 2.5 Times Width of the Milky Way