NOAO Telescopes
NOAO operates world class research telescopes in both the northern and southern hemispheres. These telescopes are located at Kitt Peak and Cerro Tololo in the US and Chile, respectively. Complemented with similar astronomical instruments, the two sites allow US astronomers to make observations over the entire sky. Instrumentation includes optical to near infrared wavelength (0.4 to 5 micrometres) cameras and spectrometers.
Read more about this topic: National Optical Astronomy Observatory