@ California Academy of Sciences, Golden Gate Park, 55 Music Concourse Drive. This special SF Pride event includes a performance by Heklina & Friends with music by Hella Gay Dance Party and Swagger Like Us plus dance classes, the launch of the 500 Queer Scientists project and more. The evening in the Academy’s ongoing Thursday NightLife series features art, music, performances and ideas shared with experts. 6–10pm. http://www.calacademy.org