Im applying to several universities(in korea) and in i have to declare my major at the time of application. There is no doubt i want to pursue my career as an astrophysicist and i want to take up physics, but just incase im not able to get physics major, it is required to select 2 more choices of majors during my application. So my doubt is that what are the fields i can choose that will allow me to pursue my career? the first two that come in my mind are mathematics major and mechanical engineering, but im not at all sure. I will choose physics if i can, but if i cannot~ will i be eligible for further studies in astrophysics if i choose mathematics major? what field of engineering are eligible (in general)? thanks you so much for reading through, this forum has always been of great help!