Wide field Infrared Explorer Infrared Roses Infrared Riding Hood Infrared Telescope Facility United Kingdom Infrared Telescope Infrared Space Observatory Galassia luminosa all'infrarosso Infrared Thermal Mapper Atmospheric Infrared Sounder Infrared Processing and Analysis Center Wide-field Infrared Survey Explorer Fast Infrared Exoplanet Spectroscopy Survey Explorer Forward looking infrared MIRI IRAS Space-Based Infrared System Stratospheric Observatory for Infrared Astronomy Directional Infrared Counter Measures Telescopio spaziale Nancy Grace Roman Telescopio spaziale Hubble Telescopio infrarosso del Gornergrat NIRPS