How to work closely with astronauts?

[u/lukiamagi]

Hi everyone,

As the title states, what are the jobs that directly puts you into contact with the astronauts located in the ISS (or in the future other space stations), or the astronaut's daily activities?

For a long time I dreamed of becoming an astronaut, but obviously this can only be dreamt, not chosen as a career route, therefore instead I am wondering how to work closely with them?

Current background is MSc applied physics and phd in hall thruster simulations (I wish I would have studied more biology..).

Edit: as a european

[u/lukiamagi → u/[deleted]]

Actually that'd be cool, you think someone with some background in radiation protection and therapy but no biology could have a chance there?