Dear aspirant !

Hope you are doing great ! If you want to know how to become an astrobiologist, you have to start with a basic college degree in science, like B.Sc . Most colleges have science degrees; you can be an astrobiologist with any science degree. You can do Bachelor in Science (BS) 4 year degree or joint BS-MS program (5 year degree).

• Earn a bachelor's degree in a scientific discipline. ...
• Pursue a master's degree in astrobiology. ...
• Complete research projects. ...
• Build a professional network. ...
• Apply for jobs as an astrobiologist.

https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.careers360.com/university/the-university-of-arizona-tucson/astrobiology-exploring-other-worlds-certification-course&ved=2ahUKEwimi9awubr4AhW5xjgGHXvkDbYQFnoECAQQAQ&usg=AOvVaw331--0wJNfQ6GgJuAAc_tt .

Hope it helps you !

Thanks