"This concise book introduces readers in the physical sciences (and beyond) to the exciting frontier topic of dark matter - a mysterious, non-luminous form of matter in the universe that is thought to account for about 27% of the mass-energy balance in the universe. Though dark matter has not yet been directly detected, its presence is implied by the fact that gravitational effects observed in galaxies cannot be explained unless they actually contain...

"Jacqueline Mitton and Simon Mitton offer the first biography of Vera Rubin, an astronomer who made vital contributions to our understanding of dark matter. An outstanding scientist herself, Rubin also championed women in science, by mentoring, advocating for hiring women faculty, disseminating their research, and recognizing their achievements"--

This engaging picture book biography shows how pioneering astronomer Vera Rubin, who discovered evidence for the existence of dark matter, the most mysterious substance in the universe, changed people's understanding of both the universe and what a woman can do.