Why are there so few research groups that focus on relativity and gravity in the US? It may be only my perception, but it seems that studying general relativity is rather "standard" in the UK. The schools I've looked at all seem to have a few classes on relativity at the undergraduate level. At the graduate level, it seems like doing your research on relativity and gravity is much more common there as well. If you search for graduate schools in "cosmology/relativity/gravity" in the US-News grad school rankings, it only lists 12 schools with any kind of program in the entire US, and the "top 10" are pretty much all "top 10" schools for Physics in general, i.e., the kind of schools with HUGE physics departments with plenty of areas of research. Looking at the top 10 listed....you can't really "bank" on being accepted to anyone...regardless of your application caliber. Again, it may be only my perception....but are your choices really pretty limited if you want to focus on some form of geometric physics (relativity, gravity, cosmology, etc) in graduate school in the US? If so, does anyone know why it is that way (US vs UK)?