I would think that it would involve a great deal more before could become a . Once potential astronomers have completed their doctoral degree and finished up all of their internships.NASA looks at what you've done in your chosen field of science, and selects based on your past experience. NASA then trains the astronauts for a couple years, and then allows them to be put on specific missions.
Overall at the Johnson Space Center the environment was laid back with its own security force. Tours and activities are ongoing from annual hot air balloons to astronauts training.
Super cool once in a lifetime experiences while life sciences and telemetry communications with the international space station are continuing.
The only knock would be poor supervisors and how contracts are either renewed or awarded.
Definitely worth applying and being a part of Team Nasa.
Being surrounded by people who are experts in their field. There is so much knowledge that is immediately accessible by just walking to a different table at lunch and asking questions. It really is a dream for folks who define themselves by their curiosity.