Hi, I'm an undergraduate, currently enrolled in a degree program for Physics. Part of the requirements of the program is—you guessed it—a thesis. Now, I'm not really good with experimental physics, and aside from that, the university I'm currently enrolled at doesn't really have much equipment. So, I was thinking something more on the theoretical side, or probably the numerical/computational side. So far, in the program, I've studied the fundamentals (Classical Mechanics, Electromagnetism, Thermodynamics, Optics, etc.), and I've enrolled in courses dealing with Mathematical Methods, and only recently, I've studied Special Relativity and the basics of Quantum Mechanics. I know that this part—choosing the topic—is meant to encourage independent thinking, and so to narrow it down, I've actually tried researching further on some broad fields that I am interested in, (Quantum Mechanics, General Relativity, Relativistic Electromagnetism, etc.), and that's what I've been doing for the past few months. Recently, I've started studying General Relativity in more detail. I've approached a potential thesis adviser with the idea that I'm more interested in Relativity, and she suggested that I search for a good topic in Relativistic Astrophysics. So, here's the question. Can anyone point me to any direction in which I might find a potential problem that I could study for my thesis? Due to the suggestion given by the potential adviser, my prioritized field is Relativistic Astrophysics, but if you guys might be able to suggest a problem that is still in line with the interests I've mentioned above, that would still be great. Thanks.