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00:08:22
In 1997, the Exploratorium opened the Phyllis C. Wattis Webcast Studio on the museum floor, linking Internet users to live museum events and to live events at remote locations. In this video you can explore the early days of webcasting at the Exploratorium.

00:02:00
Watch the beginning of Venus’s transit across the disk of the sun, one of the rarest astronomical events.

00:02:00
Watch the conclusion of Venus’s 6.5-hour journey across the disk of the sun, one of the rarest astronomical events.

0:49:06
What if we did contact another intelligent life form in the universe? What should we say? What traits best represent our humanity? Douglas Vakoch, the SETI Institute’s Director of Interstellar Message Composition, is working with scientists, artists, linguists, composers, and others to imagine how to speak for our planet.

0:55:19
What does it mean to find the Higgs Boson at CERN? Hear how this elusive particle could change our understanding of physics.

0:58:28
The Exploratorium's Senior Scientist Tom Humphrey takes you around the Antiproton Decelerator, from beam pipes to antihydrogen traps.

1:09:59
Follow CERN's Mission Impossible team as they race against the clock to collect all they need to bring antihydrogen back to CERN's webcast headquarters.

0:41:28
Scientists at CERN in Switzerland explain to the Exploratorium's San Francisco audience why preparing for antimatter experiments is like arranging a marriage.

0:43:07
Making antihydrogen is no easy matter. Researchers at CERN show the Exploratorium's Melissa Alexander and Tom Humphrey where positrons live and how they keep them as cold as deep space.

0:29:09
What is antimatter and why are scientists studying it? How is the world's largest particle accelerator constructed? The Exploratorium's Rob Semper talks about how science is done at CERN and answers questions about antimatter from the Exploratorium's Webcast audience.