When NASA was preparing for Sally Ride’s first spaceflight in 1983, there was some question about what should go in her personal kit.
Namely, engineers needed to figure out how many tampons she would need for a one-week mission.
After first allowing women into the astronaut corps in 1978, NASA really didn't know what to do with them.
The men were probed, prodded, inspected inside and out until not a body single secret was kept from the physicians.
Seven of the men went on to pass similarly rigorous psychological screening and emerged as NASA’s first class of astronauts.
Sally Ride In Space Sally Ride in orbit (and I'm not implying she was the first to menstruate in space!)
NASA's First Female Astronauts NASA's First female astronauts: Shannon Lucid, Rhea Seddon, Kathy Sullivan, Judy Resnik, Anna Fisher, and Sally Ride. »