When COVID-19 restrictions get to be a bit too much, an expansive night sky can remind us to exhale. But when our heads turn heavenward, what are we actually looking at? The Robert Ferguson Observatory in Kenwood would like to answer that question at Night Sky Trails. During these evenings, docents use lasers to point out constellations to small groups. The next event will be held on May 15, 9:30–11 p.m., at the observatory, which is in Sugarloaf Ridge State Park in Glen Ellen. Tickets are $5 (free for ages 17 and younger) and must be purchased online; no tickets will be sold at the door. Parking is $10. For ambitious stargazers, the Mercury Sunset Hike—a jaunt to view the planet closest to the sun—will be held on the same night, 8–8:30 p.m. See rfo.org for more information and to purchase tickets.