Guided instruction on how telescopes work & what to consider when purchasing or upgrading. Bringing a telescope not required, but those who do should email [email protected] with info about the type of scope being brought. Hosted by Robert Ferguson Observatory. $65–$80. Cost includes parking & all members of family. 5–8 p.m. Sugarloaf Ridge State Park. Robert Ferguson Observatory. 2605 Adobe Canyon Rd., Kenwood. Tickets: tinyurl.com/57bkb3sx.