Recommended cles?

Either field would be good, depends on what you like. Astrobiology is a mixture of astronomy and biology wheres astrophysics is physics and mathematics. Recommended cles for astrobiology would be any biology course, especially microbiology and astronomy/space courses. Recommended cles for astrophysics would be every math cl you can get into (advance math mainly, so in high school calculus) and the same with physics courses.