Hubble space telescope [2]![click to hear](/images/speaker.jpg)
Telescope placed in orbit above Earth’s atmosphere (370 mi), making it possible to observe the universe as never before.
aperture door ![click to hear](/images/speaker.jpg)
Panel that opens and closes over the telescope’s optical system.
aft shroud ![click to hear](/images/speaker.jpg)
Part containing, in particular, a cooling system that protects the scientific instruments.
solar panel ![click to hear](/images/speaker.jpg)
Power supply device that converts solar energy into immediately usable electrical energy.
antenna ![click to hear](/images/speaker.jpg)
Conductor that transmits images to Earth by means of a communications satellite.
light shield ![click to hear](/images/speaker.jpg)
Prevents stray light from entering the telescope.
fine guidance system ![click to hear](/images/speaker.jpg)
Makes it possible to point and control the telescope with great precision.
secondary mirror ![click to hear](/images/speaker.jpg)
Mirror that sends light back toward the scientific instruments through a hole in the primary mirror.
primary mirror ![click to hear](/images/speaker.jpg)
Mirror that reflects the light of celestial bodies, directing it toward the secondary mirror.
scientific instruments ![click to hear](/images/speaker.jpg)
These include cameras, spectrographs and photometers.