Valentina Tereshkova made history #OTD in 1963 when she became the first woman in space. She spent three days alone in orbit, circling the Earth 48 times. . . . . . . . . . . #science #space #orbit #womeninscience #womeninSTEM #first #history #sciencehistory #spacehistory #Earth #spacerace #inspiring #cool #scienceiscool