https://www.theregister.co.uk/2018/06/05/nasas_webb_telescope_baffled_by_gold/

While the spaceship name Heart of Gold was taken by the late, great Douglas Adams, NASA has come up with something similar for its forthcoming space telescope.

To capture incoming radiation, NASA’s James Webb Space Telescope will need to fend off outgoing radiation. The telescope, scheduled to launch in 2020 following several delays, contains four scientific instruments for making space observations of visible and infrared light.