The James Webb Space Telescope (JWST) is a space telescope that is set to launch in 2021. It is the successor to the Hubble Space Telescope, and will be the most powerful space telescope ever built. The JWST will be able to observe objects in infrared light, allowing it to see much farther into space and time than any other telescope. It will also be able to detect planets outside of our solar system, and study the atmospheres of those planets. The JWST will help us better understand the formation and evolution of galaxies, stars, and planets, as well as provide new insights into the origin of life in our universe.