At first, I was really interested in biology and I wanted to be a doctor and to help people. Now, I'm finding a new interest in space and all of the interesting theories of gravity and physics. I know for sure that I want to go to the University of Iowa, but I don't know what I want to major in. I think I'm leaning toward Astronomy or Physics. But, I want to make a decent salary and do research in astrophysics, etc. I don't know how the job market is for astronomy majors/space in general. Does anyone have any advice they could give me? Thanks.