Among the many enormous and record-breaking displays at the 1893 World’s Columbian Exposition, none were astronomical as the Yerkes Telescope. The historic telescope has been on view to the public, and in service to scientists, for the past 120 years while housed in the Yerkes Observatory in Williams Bay, Wisconsin, a beautiful building designed by World’s Fair architect Henry Ives Cobb. The observatory and treasured telescope face an uncertain future as the University of Chicago ceases operations of the [...]