Attend or watch the webcast of “Iron Science Teacher” at the Exploratorium in San Francisco. Visit www.exploratorium.edu/iron_science
July 19–26
Plumb the depths of cave science at the 15th International Congress of Speleology in Kerrville, Texas. Find out more at www.ics2009.us
August 10–13
Scientists discuss the largest U.S. waterway at the Visions of a Sustainable Mississippi River conference in Collinsville, Ill. See www.conferences.uiuc.edu/mississippiriver
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