Observations
 
 
 | European Southern Observatory | 
 
 
 | SWIFT, Gamma Ray Explorer, NASA, 2004 - | 
 
 
 | Chandra X-ray Observatory, NASA, 1999 - | 
 
 
 | FUSE (high-resolution spectroscopy in the far-ultraviolet), NASA, 1999-2007 | 
 
 
 | XMM Newton (X-ray Multi-Mirror), ESA, 1999-2010 | 
 
 
 | Hubble Space Telescope (HST) | 
 
 
 | Infrared Space Observatory (ISO) | 
 
 
 | Sofia, Stratospheric Observatory for Infrared Astronomy, airborne observatory | 
 
 
 | Spitzer Space Telescope | 
 
 
 | UKIRT, United Kingdom Infra-Red Telescope | 
 
 
 | W. M. Keck Observatory | 
 
 
 | ALMA, Atacama Large Millimeter/submillimeter Array (ESO link) | 
 
 
 | Atacama Pathfinder EXperiment (APEX) | 
 
 
 | Caltech Submillimeter Observatory (CSO) | 
 
 
 | Combined Array for Research in Millimeter-Wave Astronomy (CARMA) | 
 
 
 | Herschel space observatory Herschel science projects: | 
| CHESS, Garradd, GOT C+, GT1, HEXGAL, HEXOS, HIFI-PV1, HIFIstars, HOP, HssO, PDRs, PRISMAS, WADI, WISH, W31C | 
 
 
 | Institut de Radio Astronomie Millimétrique (IRAM) | 
 
 
 | James Clerk Maxwell Telescope (JCMT) | 
 
 
 | Submillimeter Array (SMA) | 
 
 
 | Effelsberg, MPIfR, Bonn, info on receiver and radiometer | 
 
 
 | Five College Radio Astronomy Observatory (FCRAO) | 
 
 
 | LOFAR - Low Frequency Array | 
 
 
 | National Radio Astronomy Observatory (NRAO) | 
 
 
 | SKA - Square Kilometre Array telescope | 
 
 
 | Very Long Baseline Array (VLBA) | 
 
 
 | VLBI Exploration of Radio Astrometry (VERA) |