The NASA James Webb Space Telescope (JWST) is the largest optical telescope in space, orbiting a million miles away from Earth. It is designed to observe at infrared wavelengths which allow the JWST to observe the furthest galaxies just after they formed, and planets around other stars. This new telescope is making new discoveries every day from planets in our own Solar System to galaxies far, far away. These investigations involve many fields of astronomy and cosmology, such as observation of the first stars, the formation of the first galaxies, and the atmospheres of potentially habitable exoplanets.