Marie Tharp: the Woman Who Mapped the Ocean Floor

By Jaime Seltzer Marie Tharp was born in 1920 in Ypsilanti, Michigan, the city so unpronounceable even its inhabitants call it ‘Ypsi’. Her mother, Bertha, was a language teacher who instructed in Latin and German before she married her father, William, who was a soil scientist who made maps for the U.S. Department of Agriculture. […]