In today’s Radio Astronomy, Brianna Smart and Aaron Lopez tell us about Yerkes Observatory in Williams Bay, Wisconsin, which is set to close this fall after more than a hundred years of operation. George Ellery Hale and Charles T. Yerkes wanted a spot far away from Chicago’s smog and lights. Lake Geneva had no light pollution and was just what Hale and Yerkes were looking for. Still to this day, Yerkes Observatory has one of the largest refracting telescope in the world that is used for astronomical research. The observatory calls itself “the birthplace of modern astrophysics.”