Hubble space telescope [1]
Telescope placed in orbit above Earth’s atmosphere (370 mi), making it possible to observe the universe as never before.
aperture door 
Panel that opens and closes over the telescope’s optical system.
aft shroud 
Part containing, in particular, a cooling system that protects the scientific instruments.
solar panel 
Power supply device that converts solar energy into immediately usable electrical energy.
antenna 
Conductor that transmits images to Earth by means of a communications satellite.
light shield 
Prevents stray light from entering the telescope.