We could probably dig that number out of Google. There are very few. Most NASA staff would be hardware or system management and scientists. Scientists would be astronomers and geologists, maybe a few biologists. NASA itself has about 30,000 on staff. They farm out programs to universities and aerospace companies, which is where biologists might be found.
"They farm out programs to universities and aerospace companies, which is where biologists might be found."
It seems to me that employing a large number of biologists at NASA would be like having your African Safari guide meet you at your home in the US.
You have to get there, and then have something of interest before a biologist becomes key. Sure, they could help you refine your search, but if you don't have the hardware/systems people, there is no search. First things first. NASA is a punching bag lately, I see no reason to beat them up over such a point.
RightWhale, without a numerical breakdown on the occupations of all of NASA's employee roster including the number of
- geologists,
- astrophysicists,
- design engineers,
- mechanical engineers,
- astronomers,
- computer techs,
- computer programmers,
- astronauts,
- astronauts in training,
- physicians,
- electrical engineers,
- physicists,
- mechanics,
- research and development staff,
- administrative staff,
- clerical staff,
- security,
- media relations staff and
- other support staff, etc.
it becomes extremely difficult to make a judgment call that NASA is deplete in one or another field of expertise or occupation.