How do you become considered for astronaut selection?

Question: How do you become considered for astronaut selection?
- Keywords:
  astronaut,
  career
Asked by Niall Walmsley to Namrah on 9 Mar 2021.
- Namrah Habib answered on 9 Mar 2021:
  
  The best way to actually be considered for astronaut selection is to apply! Once in while, the European Space Agency (ESA) will open up applications for astronaut selection. ESA then reviews the applications and interviews the candidates to make a selection. NASA has a similar process but the applications open more frequently than ESA astronaut applications. To qualify to become an astronaut, ESA requires that you have a masters degree in natural sciences, medicine, engineering, computer science or maths, and 3 years of job experience!
  
  Actually ESA has an open application for astronaut selection right now and you can check out the what the application process and requirements are here: https://www.esa.int/About_Us/Careers_at_ESA/ESA_Astronaut_Selection/Astronaut_selection_2021-22_FAQs#:~:text=Unique%20chance%20to%20apply&text=This%20is%20an%20exciting%20and,future%20of%20European%20space%20exploration.

Question: How do you become considered for astronaut selection?