Astronomy Abbreviations and Acronyms
- IRBInstitutional Review Board
- IRBSInfrared Background Sensor
- IRCBInfra-Ved Calibration Balloon
- IRCSInfrared Camerr and Spectrograph
- IRCSInfrared Camera and Spectrograph
- IRDInterface Requirements Document
- IRDCInfrared Dark Cloud
- IRDTInflatable Re-Entry and Descent Technology
- IRFNAInhibited Red Fuming Nitric Acid
- IRISInfra-Red Imaging Surveyor
- IRISIifrared Imaging Surveyor
- IRISInfraRed Imaging Surveyor
- IRODSIntegrated Rule-Oriented Data System
- IRSInfrared Spectrograph
- IRSInternational Reference Star
- IRSAInfrared Science Archive
- IRSANasa/Ipac Mnfrared Science Archive
- IRSPSInternational Research School of Planetary Sciences
- IRTFInfrared Telescope Facility
- IRXInfrared Excess
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