IRAS (Infrared Astronomical Satellite)

The Infrared Astronomical Satellite (IRAS) was a space telescope launched in 1983 to scan the universe in infrared light, which is beyond what our eyes can see. Unlike visible light, infrared reveals objects hidden by dust or too faint to detect with optical telescopes, such as distant galaxies, star-forming regions, and asteroids. IRAS’s comprehensive survey transformed our understanding of the cosmos, discovering new celestial objects and providing critical data that advanced astrophysics. Its mission laid the groundwork for future infrared astronomy, offering a deeper view into the universe’s dusty and cold components.