What is infrared used for in space?

Infrared is used in space primarily for astronomical observations, allowing scientists to study celestial objects that emit heat rather than visible light. This includes the observation of cooler objects like dust clouds, planets, and distant galaxies, which can reveal important information about their composition and formation. Infrared telescopes, such as the James Webb Space Telescope, can penetrate dust clouds to uncover star formation and the early universe. Additionally, infrared technology is crucial for studying exoplanets and their atmospheres.