NASA's James Webb Space Telescope - 'Eyepiece to the Uncharted'

NASA's James Webb Space Telescope is the "most technologically challenging space telescope ever built," according to NASA's Goddard Space Flight Center. Hear about all it could accomplish in this mission explainer. -- NASA's James Webb Space Telescope: Hubble's Cosmic Successor: https://www.space.com/21925-james-webb-space-telescope-jwst.html

Credit: NASA's Goddard Space Flight Center.