Robert Ferguson Observatory docents give laser-guided tours of the constellations to small groups. $5. Ages 17 & younger: free. Parking: $10. Masking & social distancing required. 9:30–11 p.m. Sugarloaf Ridge State Park. Robert Ferguson Observatory. 2605 Adobe Canyon Rd., Kenwood. Reservations required (no tickets at door): rfo.simpletix.com.