In 1993, the Lesbian Avengers organized the first Dyke March. Within a few years, its membership grew to more than 50 chapters nationwide. Carolina Kroon hide caption

MUNA. Foreground: Josette Maskin; center-right: Katie Gavins. Back: Naomi McPherson. Isaac Schneider/Courtesy of the artist hide caption

The new bacteria, named Thiomargarita magnifica, were discovered on sunken leaves in a Caribbean mangrove swamp. Olivier Gros/The Regents of the University of California, LBNL hide caption