Tickets are available for a gala marking the 30th anniversary of the Discovery Museums in Acton. The dinner and dance will take place at 6:30 p.m. Nov. 10 on the grounds of the Discovery Museums complex at 177 Main St., and will be hosted by WBUR’s Robin Young. Proceeds will support the organization’s Open Door Connections program, which served more than 35,000 people last year by making its two museums affordable and accessible to all. Tickets are $150, or $270 for two; they can be purchased in advance by calling 978-264-4200, ext. 13; tickets and more information are also available online at www.discoverymuseums.org.