On a clear night in east-central Illinois, the sky above Middle Fork River Forest Preserve positively overflows with stars. In 2018, this Champaign County preserve became Illinois’ first International Dark Sky Park, designated by DarkSky International for its commitment to protecting natural darkness. That means strict outdoor lighting policies, shielded fixtures, and a community-wide effort to keep the glow of development at bay. The result is a rare pocket of true night and a twinkling dark ocean of stars. By day, Middle Fork is a classic prairie and river landscape. The Middle Fork of the Vermilion River winds through woodlands, restored tallgrass prairie, and wetlands. Eight hiking trails loop past wildflowers in spring and thick green canopies in summer. Canoes drift along the river. Campers settle in for the night far removed from urban distractions. Eleven campsites are designated as “Dark Sky Friendly.” And it is after dark that the preserve becomes truly extraordinary.…