Infrared astronomy is a branch of astronomy that involves the study of celestial objects and phenomena that emit infrared radiation. This type of radiation is not visible to the human eye, but can be detected by specialized instruments and telescopes. By observing objects in the infrared part of the electromagnetic spectrum, astronomers can gather valuable information about the temperature, composition, and structure of objects such as stars, galaxies, and dust clouds. Infrared astronomy has provided important insights into the formation and evolution of stars and galaxies, as well as the detection of objects that are otherwise obscured by dust and gas in the visible spectrum.