The James Webb Space Telescope needs to be kept as cold as possible in order to detect infrared light from faint and very distant objects. A key component of this is the observatory’s tennis court-sized sunshield, which obstructs the warmth of the Sun. In this episode of “Behind the Webb,” engineers add special structures to the sunshield that shape it to best reflect heat.
"Behind the Webb" is an ongoing series that follows the construction of the Webb Space Telescope, Hubble's successor. Find more episodes at Hubblesite.org.
Hubble's Universe Unfiltered is a collection of video podcasts. Each episode offers an in-depth explanation of the latest news story or image from the Hubble Space Telescope, presented by astronomer Frank Summers. Learn more at hubblesite.org.