
FAQ About Vera Rubin

What is Vera Rubin best known for?
Vera Rubin is best known for her discovery of the discrepancy in the rotational speeds of galaxies, which provided key evidence for the existence of dark matter. Her observations showed that stars in the outer regions of galaxies were rotating much faster than could be explained by the visible mass alone, suggesting the presence of an unseen mass that we now refer to as dark matter.