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See how patterns of light change throughout the day at Chaco, and hear G.B. Cornucopia and Shelly Valdez share their impressions of the phenomena of light cycles in Chaco Canyon. What are you afraid of? Snakes? Spiders? Heights? This After Dark event investigated the psychology and biology of fear, and included Damian Cooksey confronting his fear by demonstrating the sport of highlining far above visitors’ heads. The Exploratorium celebrated its future home at Piers 15 and 17 in San Francisco with an official groundbreaking ceremony and festivities on October 19, 2010. This video includes interviews with Exploratorium Executive Director Dr. Dennis Bartels and Exploratorium Chairman of the Board George Cogan about Piers 15 and 17, as well as a fly-through animation of the future home of the Exploratorium. This After Dark event presented a collection of objects, organizations, and activities use various alternative energy sources, and also looked at sustainably raised food. Senior Exploratorium scientist, Paul Doherty, unlocks the mystery behind the corrosive dust that coats the Black Rock Desert. Exploratorium Senior Scientist Paul Doherty discusses the science of dust devils and describes how vortices are created in the Black Rock Desert. The Exploratorium crew got the opportunity to enjoy a bird's eye view of the Black Rock desert. Join us as we investigate the challenges of navigating density altitude in this extreme climate. Burning Man is a literal hotbed of explosions and fire. Join Exploratorium Senior Scientist Paul Doherty as he looks at the properties that make up fire through the lens of the Burning Man event. We went and talked with the folks who ran the Microzoo camp at Burning Man 2010, and learned about critters in extreme environments.