Dark Sky Caravan coming to Cook County

Cook County is one of the darkest spots in the country, making it a perfect place to look at the sky. The Dark Sky Caravan, a mobile planetarium, is coming up the shore and will be in Cook County August 13-17.  Dr. Joel Halvorson, director of the Marshall W. Alworth Planetarium at UMD, recently joined The Roadhouse to fill us in on what we can expect.