Thursdays, 2–5 p.m. & Fridays 9 a.m.–noon, ongoing Meet: Top of main staircase behind the General’s Residence, Fort Mason Help to remove invasive species that have overwh... Read More
Friday, Feb. 9, 10:15–11:15 a.m. Meet: Pier 3 & 5 Join Exploratorium and Port of San Francisco staff on the waterfront to observe, photograph, and discuss the king tides. “... Read More
Fri.–Sun., Feb. 16–18, 10 a.m. S.F. County Fair Bldg. (1199 Ninth Ave.) The largest orchid show on the West Coast features thousands of blooms, and offers a diverse variety of ... Read More
Monday, Nov. 13, 7:30 p.m. Morrison Planetarium, Cal Academy of Sciences This talk will focus on recent advances in our understanding of the origin of the heaviest and rarest eleme... Read More
Thursday, Oct. 5, 6 p.m. California Academy of Sciences See what happens when art and nature collide at this NightLife honoring 10 years of “Big Picture,” the natural world pho... Read More
Nightly, Oct. 21–22, midnight–dawn Eastern night sky The Orionids are named after one of the most recognizable constellations in the sky, Orion, from which these meteors appear... Read More
Friday, Sept. 15, 7:30 p.m. Golden Gate Theatre Enjoy an intimate evening with the world-renowned ethologist and activist who will take the stage, speaking about her work, her life... Read More
Monday, Sept. 11, 7:30 p.m. Planetarium, California Academy of Sciences Join Dr. Samantha Trumbo and learn what lies beneath the ice of Jupiter’s frozen moon Europa and wheth... Read More
Daily, through Aug. 24, midnight–dawn Peak: Fri.–Sun., Aug. 11–13 (predicted), midnight–dawn Northern night sky The waning crescent moon will make 2023 a good year for vie... Read More
Monday, Aug. 28, 5:30 p.m. The Commonwealth Club & online Two solar eclipses are coming to North America — an annular (“ring of fire”) eclipse on Oct. 14 and a total ecli... Read More
Sat.–Sun., June 10–11, 10 a.m.–4 p.m. S.F. Botanical Garden (1199 Ninth Ave.) Curious about growing your own herbs and herbal medicine? Calendula or chamomile? knowledgeable ... Read More
Monday, June 12, 7:30 p.m. Planetarium, California Academy of Sciences Dr. Ed Lu proposes a four-dimensional map of asteroid distribution to help protect Earth from impacts. $15, ... Read More
Friday, May 5, 8 a.m. Randall Museum (199 Museum Way) Join the museum’s resident birding guide for a Golden Gate Audubon Society–sponsored bird walk on Corona Hill. This mo... Read More
Sunday, May 27, 6–10 p.m. Main Parade Lawn, the Presidio Join the S.F. Amateur Astronomers for public stargazing of the Moon, planets, globular clusters, and more. Dress warmly; ... Read More
Thursday, April 6, 7:30 p.m. Sidney Goldstein Theater (275 Hayes St.) Former U.S. Attorney for the Southern District of New York, podcast host, and author Preet Bharara will talk t... Read More