- New research explores the challenges of dealing with periods in space
- Most women opt to use contraceptives and put their periods on hold
- No research has been done on long-term use of contraceptives in space
Vital Signs is a monthly program bringing viewers health stories from around the world.
(CNN)The first woman ventured into space more than fifty years ago: Valentina Tereshkova in 1963. Since then, nearly 60 other women have followed in her footsteps.