The James Webb Space Telescope (IMAGE) NASA/Goddard Space Flight Center Caption The James Webb Space Telescope (JWST) will be almost three times the size of Hubble. JWST has been designed to work best at infrared wavelengths. This will allow it to study the very distant universe, looking for the first stars and galaxies that ever emerged. NASA, ESA, and the Canadian Space Agency are partners on this mission. Credit ESA Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.