46. research

texas is a big state with a big population and some of the largest cities in the US. as a result, some of the greatest research institutions in the nation are here in texas, in a variety of fields. to name a few:

universities: the university of texas at austin, texas a&m
astronomy: mcdonald observatory
medicine: md anderson cancer center, ut southwestern
botany: botanical research institute of texas
space travel: NASA
engineering: southwest research institute
aerospace engineering: lockheed martin
computer technology: dell, texas instruments