Kitt Peak National Observatory

Seen from inside the 780 ft. linear optical tunnel of Kitt Peak National Observatory's McMath-Pierce Solar Telescope, sunlight is reflected from the three mirror heliostat, through a series of mirrors in the tunnel to the observation room where is it analyzed with spectrographs. McMath-Pierce Solar Telescope, built in 1962, west of Tucson, AZ., is the largest solar telescope in the world. Photo taken Wednesday, October 23, 2013.

November 09, 2013 5:51 pm  • 

Your chance to win $5000 starts in:

Details revealed only in the Thanksgiving Day newspaper.

Latest Video

More videos

This is Tucson: Weekend of November 28th

Irene and Hannah discuss events happening around Tucson this Thanksgiving weekend.


Follow the Arizona Daily Star

Featured businesses

View more...
View more...