Today's A Big Day': Wisconsin's Yerkes Observatory Has New Ownership | Wisconsin Public Radio
Giant telescopes able to probe deeper into space
Yerkes Observatory
Visual Observing With The 40-Inch Yerkes Refractor
40 inch refracting telescope at Yerkes Observatory in Williams Bay, Wisconsin Stock Photo - Alamy
Urban spelunking: Yerkes Observatory, which will soon reopen to the public
Top Things to Do in Wisconsin - Yerkes Observatory
Yerkes Observatory
The (Almost) Re-Opening of the Yerkes Observatory - Sky & Telescope - Sky & Telescope
40 inch refracting telescope, University of Chicago, Yerkes Observatory - UWDC - UW-Madison Libraries
Yerkes Observatory: Restoring the World's Largest Refracting Telescope - Grainger KnowHow
Yerkes Observatory is closing its doors | Astronomy.com
Yerkes Future Foundation has big plans for Yerkes Observatory - Chicago Sun-Times
Yerkes Observatory - Wikipedia
The (Almost) Re-Opening of the Yerkes Observatory - Sky & Telescope - Sky & Telescope
Legacy - Yerkes Observatory
Yerkes Observatory aims for resurrection as school for astronomy – Chicago Tribune
Yerkes Observatory – Williams Bay, Wisconsin - Atlas Obscura
Yerkes Observatory - On November 30, 1901, astronomer and telescope maker, George Willis Ritchey, observes the heavens through the double slide-plate holder attached to the Yerkes 40-inch Refractor Telescope. ✨🔭 #YerkesObservatory #Astronomy #
An end of an era at Yerkes Observatory
Wisconsin 101
Wisconsin's Yerkes Observatory—stargazing through the world's largest refracting telescope
Yerkes Observatory | observatory, Williams Bay, Wisconsin, United States | Britannica
Yerkes Observatory – Williams Bay, Wisconsin - Atlas Obscura
