Space telescope radiators: they’re instrumental!

Our “trap door” is now open: the ADIR (Aft Deployable Instrument Radiator) has swung out from the back of the telescope to radiate heat from our science instruments into space. https://t.co/os8QVTpzN3 #UnfoldTheUniverse pic.twitter.com/kwAhvGoRAw

— NASA Webb Telescope (@NASAWebb) January 6, 2022