Did you know that the world’s largest refracting telescope is located less than an hour from Astronomy magazine’s headquarters? Founded in 1897, Yerkes Observatory sedately sits on the shore of Geneva Lake in Williams Bay, Wisconsin. On December 3, 2010, the staff of Astronomy, its publisher, and its senior graphic designer received a behind-the-scenes tour of this historic facility.
I just hope that provisions have been made to continue the maintenance of this historic instrument.
If this 40 inch Yerkes telescope is still being used to investigate the cosmos, it must be one of the oldest, if not the oldest, scientfic instruments still in use on the planet.