STScI . Staff Research . Summer Students . After You're Accepted . ... Hubble Heritage Project . ... Hubble Fellowships . ... Students that are non-U.S. citizens will need a visa to work in the U.S. regardless of where their school is located. ... Some will be on topics related to careers, some on our missions at STScI, some on the practices of professional astronomers and other professionals on our staff, and some on the research done by our scientific staff. ... Working at STScI . ...