How big is the Solar System, really? How long does it take light to travel from the Sun to the Earth? See for yourself with Planets on the Path, the Adler's new walkable scale model of the Solar System.  

You'll find planet installations spanning Chicago's entire lakefront. Beginning with the "Sun" station at the Adler, you can follow the "planets" south to Calumet Park or north to Juneway Terrace Park. If you walk at a leisurely pace, it will take you about the same amount of time to reach each planet as it would take a beam of light. Pretty cool, right? Learn more about Planets on the Path and map your route today!