What usually happens before astronauts can apply to the astronaut candidate program?

They have to log at least 1,000 hours flying in a jet
They have to complete two-years of military-like training
They have to prove they graduated high school.
They have to apply for, and be accepted to, four graduate programs.

Before astronauts can apply to the astronaut candidate program, they typically have to meet certain criteria and fulfill specific requirements. While the specific requirements may vary, some of the common steps include:

1. Education: Astronaut candidates usually need to possess a bachelor's degree in a relevant field such as physical science, engineering, computer science, or mathematics.
2. Relevant Experience: They need to have significant professional experience in fields such as science, engineering, or aviation. This experience can include work in research institutions, universities, private companies, or military service.
3. Physical Fitness: Astronaut candidates undergo rigorous medical examinations to ensure they meet the physical requirements necessary to withstand the demands of space travel.
4. Military Service: While not mandatory, having experience in the military, particularly as a pilot, can be beneficial. Many astronauts have a military background, often as test pilots.
5. FAA Class II Medical Certification: Candidates need to obtain a Federal Aviation Administration (FAA) Class II Medical Certification, which includes passing a comprehensive medical examination.
6. Citizenship: Astronaut candidates must be citizens of the country or organization that sponsors the space agency conducting the selection process (e.g., NASA for the United States, Roscosmos for Russia).
7. Language Skills: Proficiency in English is usually required, as it is the primary language used for training and communication during space missions.

While the steps mentioned in the question such as logging flying hours in a jet, completing military-like training, graduating high school, or applying to four graduate programs are not universal requirements, they can potentially enhance the qualifications of an astronaut candidate depending on the specific space agency's selection criteria.