Science Kids Famous Astronomers and Astrophysicists - From Galileo to Neil deGrasse Tyson Vera Rubin was a pioneering astronomer who defied gender discrimination to make groundbreaking discoveries in the field of astrophysics. Her work on the rotation of spiral galaxies led to the concept of dark matter, revolutionizing our understanding of the universe. Rubin's legacy continues to inspire future generations of scientists to pursue their passions despite obstacles.