A group of almost 30 ESA Faculty researchers work at the ESA Office of the Space Telescope Science Institute (STScI) in Baltimore, Maryland, USA. These scientists work on the Hubble Space Telescope and James Webb Space Telescope, and there research covers a wide range of astronomy and astrophysics. As well as collaboration with their Faculty colleagues at ESAC and ESTEC, the ESA Office benefits from the world-class research environment at STScI, and from very close collaboration with the several hundred astronomers, scientists, engineers and educators based at STScI for the operation NASA's best known space telescopes.