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“Where Alph, the sacred river ran/Through caverns measureless to man/Down to a sunless sea,” wrote English romantic poet Samuel Coleridge, but even that visionary artist could scarce imagine the alien world that dwells beneath the Earth’s sunlit seas. Discovery Place Science harnesses technology to share subterranean sights ranging from zooplankton that allegedly inspired the creature design from Alien to true-to-life images of blue whales and giant squid. Climb into a scale model of a deep...