From San Francisco to New York, in museums, universities, classrooms and in the privacy of one’s own home, (and of course on Second Life), people are celebrating Pi. It’s the 20th anniversary of the celebration of Pi Day, an international holiday born at San Francisco’s Exploratorium.

Exploratorium will exhibit a live art installation by Rod Pujante on Saturday, February 16, 2008, at 11am - 4pm, at Phyllis Wattis Webcast Studio.

This Valentine's Day weekend -- on Thursday, February 14th, and Saturday, February 16th -- the Exploratorium presents special films and interactive flower-making workshops that celebrate the power of love. All events are included in the price of admission to the Exploratorium.

The Exploratorium joins Amgen at the 2008 Amgen Tour of California, an eight-day, approximately 650-mile professional bicycle stage race, to present a collection of exhibits and demonstrations designed to reveal some of the unexpected science behind bicycling and provide insight into how the body works.

Even though we live in Northern California, when we think of the approaching holidays, we think of winter, snow and ice. In keeping with that theme and with the International Polar Year, the Exploratorium presents Henry Kaiser, a Grammy-Award winning guitarist and research diver, who will accompany 45 minutes of spectacular Antarctic footage (shot mostly underwater) with narration and improvised guitar.

Don’t miss the sound of Dylan Thomas’ voice in the December 22 Exploratorium screening of A Child’s Christmas in Wales, the 1963 film that presents the story, written and narrated by Dylan Thomas, of a boy’s memories of Christmas in Wales. Sound and image also come together in amazing ways during the Holiday Animation Film Festival, from December 26-29, at noon and 2pm.

Antarctica is a vast, wild continent of snow and ice; boasting the driest desert and the coldest temperatures on the planet. Join the Exploratorium as it ventures to the bottom of the world for a series of webcasts, live events, and demonstrations.

The Exploratorium has been selected as one of America's best nonprofits by a survey of nearly 3,000 nonprofit CEO's and 60 expert interviews conducted for the new book, Forces for Good: The Six Practices of High-Impact Nonprofits, by long-time nonprofit consultants Leslie Crutchfield and Heather McLeod Grant.

The Magic Theatre, in partnership with the Exploratorium Museums, presents Science on Stage 2007, the seventh annual presentation of script-in-hand performances of new plays about science and technology. San Francisco's well-known producer of premiere theatre works, the Magic, and San Francisco’s popular museum of science and art, will be offering engaging new plays at the Exploratorium's McBean Theater on Wednesday evenings, September 12, 19, and 26, at 7pm.

Exploratorium is a cool place to visit in the season of Halloween.

Working with custom-made film strips and an elaborate array of modified projectors, the Brooklyn-based Bruce McClure creates immersive sound/light experiences that go beyond the merely cinematic. McClure premieres his new work in the Exploratorium's McBean Theater on Thursday and Friday, October 25 and 26 at 7:30pm.

The Exploratorium’s new Mind exhibition, four years in the making, runs November 9, 2007-December 31, 2008, and includes the cutting-edge work of both artists and scientists.