https://www.amnh.org/learn-teach/curriculum-collections/cosmic-horizons/profile-vera-rubin-and-dark-matter?utm_sq=g2ktkc8mqn
M. L. Johnson
flipped into 6 Degrees of Science & Climate Change
https://www.amnh.org/learn-teach/curriculum-collections/cosmic-horizons/profile-vera-rubin-and-dark-matter?utm_sq=g2ktkc8mqn