Exploratorium After Dark — themed 18+ nights

The Exploratorium’s weekly After Dark series returns on Thursday, May 21, with a four-hour, adults-only program at the museum’s Pier 15 campus in San Francisco. The museum lists the event as running from 6 p.m. to 10 p.m. and says the Thursday-night series is open only to visitors 18 and older. (exploratorium.edu) The format combines access to the museum’s interactive galleries with rotating themed programming, according to the Exploratorium’s event pages. Secret San Francisco also lists the series among notable things to do in the city this month. ### What exactly is happening on May 21? (exploratorium.edu) Thursday, May 21, is the next scheduled After Dark date on the Exploratorium calendar, where the museum has posted that evening’s theme as “Staying Alive.” The event page says the program will include activities and discussions about how people stay safe and “human” in a digital world, along with hands-only CPR instruction with the San Francisco Fire Department. The Exploratorium says After Dark takes place every Thursday night at Pier 15. The museum describes the series as a kid-free evening built around science, art and perception, with exhibits open throughout the event. (exploratorium.edu) ### What do visitors get with an After Dark ticket? The Exploratorium says After Dark admission includes access to 650-plus interactive exhibits across its indoor and outdoor galleries. The museum’s ticket page describes the Thursday-night program as an adults-only chance to explore hands-on installations focused on science, art and perception. (exploratorium.edu) Pier 15 is the setting for the event, with the museum’s main campus on the Embarcadero at Green Street in San Francisco. The Exploratorium’s main site lists Thursday evening hours separately from its daytime schedule, showing the museum open from 6 p.m. to 10 p.m. for After Dark. (exploratorium.edu) ### How themed is the series from week to week? The Exploratorium says each After Dark evening carries a different topic and can include talks, demonstrations and other live programming alongside exhibit access. On its media page for the series, the museum says past and recurring subjects range from music to electricity, and that each night includes a cash bar. (exploratorium.edu) Secret San Francisco describes the Thursday program as a rotating series with different themes each week, along with guest speakers, films and music. That matches the museum’s own calendar, which lists upcoming editions including “At the Edge” on May 28 and “Home Away from Home” on June 4. (exploratorium.edu) ### Is this a one-off event or an ongoing Thursday program? Every Thursday is how the Exploratorium labels the series on both its event and ticket pages. The museum also sells an After Dark membership, describing it as access to a full year of Thursday nights for adults 18 and older. (exploratorium.edu) A 2025 Exploratorium press release described After Dark as a recurring Thursday program with interactive exhibits, live demonstrations and food and drinks available for purchase. That release referred to 700-plus exhibits, while the museum’s current ticket and event pages say 650-plus, indicating the institution is currently using the lower figure in its public-facing listings. (secretsanfrancisco.com) ### Where can people check details before they go? The Exploratorium posts After Dark details on its official calendar and ticket pages, where the May 21 listing appears under “After Dark: Staying Alive.” The museum’s website also provides location information for Pier 15 and separate Thursday-night hours for the adults-only program. (exploratorium.edu) Secret San Francisco’s May events guide also points readers to the Exploratorium’s After Dark series as a current city listing. The next scheduled Thursday programs on the museum calendar are May 21, May 28 and June 4, with ticketing handled through the Exploratorium site. (exploratorium.edu) (secretsanfrancisco.com) (exploratorium.edu)