Solar System Observations and Future Missions.- Extragalactic Observations and Future Missions.- Detection Limits in the Far Infrared.- Background Limited Infrared and Submillimeter Instruments.- Simulations of the Microwave Sky and of Its “Observations”.- Radiative and Hybrid Cooling of Infrared Space Telescopes.- The Infrared Space Observatory (ISO).- The Infrared Space Observatory: Telescope Design.- Infrared Telescope in Space: IRTS.- Infrared Astronomy on the Midcourse Space Experiment.- The Wide-Field Infrared Explorer (WIRE).- SOFIA: The Next Generation Airborne Observatory.- POST: Polar Stratospheric Telescope.- Infrared Imaging Surveyor: IRIS.- Optics of the Far Infra-Red and Submillimetre Space Telescope.- SIRTF: The Moderate Mission.- The Edison Infrared Space Observatory.- The Boomerang Experiment.- The Far Infrared Explorer (FIRE).- OLBERS: An Interplanetary Probe to Study Visible and Infrared Diffuse Backgrounds.- How to Evidence Primitive Life on an Exo-Planet? — The DARWIN Project.- The Near Infrared High Resolution Imaging Camera Program of Beijing Observatory.- The Effect of Realistic Surface Properties on Low Temperature Space Observatories.- The Management of Stray Radiation Issues in Space Optical Systems.- Pulse Tube Refrigerators.- The Use of Closed Cycle Coolers on Space Based Observatories.- Adiabatic Demagnetisation Refrigerators for Future Sub-Millimetre Space Missions.- Infrared Detection, Review of Existing and Future Devices.- A Novel Bolometer for Infrared and Millimeter-Wave Astrophysics.