Vanished, an online science-fiction interactive mystery event that starts April 4. Kids can sign up for the event, conducted by the Smithsonian and the Massachusetts Institute of Technology, at vanished.mit.edu. The mystery, which is unveiled during the course of the eight-week event, involves a fictitious environmental disaster. Each week, participants will get clues online that will allow them to come up with hypotheses about the cause that can be tested, debated and refined. Scientists will have videoconferences online, and participants can send them questions that will be answered in real time.
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