A Discrepancy Named Darkness

This biography highlights Vera Rubin’s groundbreaking work in astronomy, focusing on her fifteen-year effort to measure galaxy rotation, which revealed that galaxies are held together by unseen matter. The book explores her personal journey—from facing gender-based obstacles to making a discovery that challenged existing theories—and delves into the ongoing debate over the nature of the universe’s missing mass. It portrays Rubin’s steadfast commitment to her science and the lasting impact of her contributions to our understanding of the cosmos.