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On June 8, 2004, Venus crossed the Sun-s disk for about seven hours, an event not seen since 1882. The transit demonstrates a key technique being used to detect planets orbiting stars outside our Solar System. Just as Venus will temporarily dim the light of our star, the Sun, when it crosses in front of it, a distant planet may crossover and block the light of its parent star. Several planned missions will hunt for such -extrasolar- planets as part of NASA-s Origins program, which seeks to answer the questions: Where did we come from? Are we alone? This Webcast brought together a panel of top NASA scientists and engineers to discuss the future of extrasolar planet research and the science behind this rare astronomical event.
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NASA-ESERevSProd170
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