The James Webb Space Telescope is designed primarily to observe infrared light. It is optimized to observe the first stars and galaxies that formed after the Big Bang, study galaxy formation and evolution, understand star and planet formation, and analyze planetary systems and the potential origins of life. Webb's instruments can see objects that are too old, distant, or faint for telescopes that observe visible light because it detects longer wavelengths in the infrared spectrum, allowing it to peer through cosmic dust and observe colder or more distant objects.
