54 years ago today, Valentina Tereshkova became the first woman in space. The 26 year-old cosmonaut blasted skyward onboard Vostok 6 before orbitting the earth 48 times. She spent nearly three days in space
, more than all of the U.S. astronauts who had flown before that date combined. Since Tereshkova made history on the morning of June 16, 1963, women from the U.S.
, Canada, China, Japan, France, Italy, South Korea and the UK have all traveled to space. In 2013, Tereshkova offered to go on a one-way trip to Mars if the opportunity arose.