I'm an astrophysics major. I want to go to grad school. Whether it's physics, astrophysics, or astronomy I'd enjoy anything. My GPA is not good and realistically I was wondering what are my options if I had a 2.8 GPA (hypothetically, I still have two years left but my gpa is 2.4 now). I am at a top 25 undergrad school in the US. Do I have any hope? If not, what are my options?