by John D. D, » Fri Jul 10, 2015 11:47 am
Much of space is defined by differences in gravitational fields, so I would look up the study of physics, particle physics, and any material that involves using equations that have G in them. Also, up the study of frequency math - Fourier transforms, etc. MIT and Yale have some open course stuff. Once you can get a respectable score on physics, math, and chemistry GRE qualifiers, seek out contacts, meetings, email correspondences with people who actively do research with the space station. Visit national telescopes for a week or so, and talk to the people who work there. Many are quite approachable.