WInfrared telescopeWList of largest infrared telescopesWList of space telescopesWBeijing Schmidt CCD Asteroid ProgramWDiffuse Infrared Background ExperimentWEastern Anatolia ObservatoryWEuclid (spacecraft)WGornergrat Infrared TelescopeWGUSTO (telescope)WHerschel Space ObservatoryWHigh Elevation Antarctic Terahertz TelescopeWInfrared Optical Telescope ArrayWInfrared Space ObservatoryWIRASWJames Webb Space TelescopeWMagellan TelescopesWMidcourse Space ExperimentWNancy Grace Roman Space TelescopeWNASA Infrared Telescope FacilityWNear-Earth Object Surveillance MissionWNIRSpecWPlanck (spacecraft)WSAFIRWSentinel Space TelescopeWSpace Flyer UnitWSpitzer Space TelescopeWStratoscopeWStratospheric Observatory for Infrared AstronomyWTelescopio Carlos SánchezWUnited Kingdom Infrared TelescopeWVery Large TelescopeWVISTA (telescope)WWide-field Infrared Survey Explorer