Valentina Kerman is the first official female kerbal and the first new kerbal on the initial roster after the original three. She is a pilot and has the "badass" flag. In common with other female kerbals (aka Kerbalinas), she has a smaller head than the men, wears a ponytail and has eyelashes. She can be seen floating in front of Kerbin on the Start Game menu (identified by the 1.0 readme file).
At age 26, Tereshkova flew aboard Vostok 6 from the USSR on 16 June 1963, logging a then-record 48 orbits within three days. For 19 years, she also remained the only woman to have flown in space.
In 2013, at age 76, she said she was willing to take a one-way trip to Mars.
- Answer from @KerbalSpaceP on Twitter