A major new effort to study the cosmos is now named after astronomer Vera Rubin, who discovered telltale evidence that the universe is infused with dark matter. Surveying the sky beginning in 2022, the Rubin Observatory will study dark matter and another shadowy cosmic character, dark energy (SN: 4/13/11). As a researcher at the Carnegie Institution for Science in Washington, D.C., her observations of stars’ motions within galaxies, made with fellow Carnegie astronomer Kent Ford in the 1970s, revealed the gravitational pull of an invisible type of matter, now known as dark matter (SN: 4/8/11).