After the Challenger accident, NASA put in a lot of time to improve the safety of the space shuttle to fix the things that had gone wrong.
For quite some time, women at NASA only had scientific backgrounds.
Once you are assigned to a flight, the whole crew is assigned at the same time, and then that crew trains together for a whole year to prepare for that flight.
The most anxious time was during launch, just because that is so dramatic.
Well, we spend an awful lot of our time working and doing experiments. It's very busy up on the shuttle.