STScI . ... The James Webb Space Telescope (JWST), formerly the Next Generation Space Telescope (NGST), is a collaborative effort between NASA , the European Space Agency (ESA) and the Canadian Space Agency (CSA) to develop a large, near- and mid-infrared optimized space telescope to be launched in the middle of this decade. ... The Space Telescope Science Institute (STScI) will have a similar role in JWST as it does for HST, and will be the Science and Operations Center (S&OC) for the telescope. ...