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Harvest of FearGenetically modified foods—a wondrous advance or a new threat? Explore the growing controversy.
Hawaii Born of FireFrom their blistering beginnings as molten rock, the Hawiian islands have grown into a verdant paradise of unique lifeforms.
Hitler's Lost SubA fisherman's net snags off the coast of New Jersey, revealing a missing World War II German U-boat.
Hitler's Sunken SecretAn expedition to the bottom of Norway's Lake Tinn illuminates Nazi Germany's nuclear ambitions.
Holocaust on TrialA trial in London's High Court examines evidence from Auschwitz to successfully challenge the claims of Holocaust "deniers."
Hubble's Amazing RescueThe unlikely story of how the world's most beloved telescope was saved.
Hunt for Alien WorldsAstronomers discover planets beyond our solar system. But is there life on them?
Hunt for the SupertwisterTornado-chasing scientists with an eye to better forecasting risk their lives to plumb the secrets of nature's most terrifying killer.
Hunting the Hidden DimensionMysteriously beautiful fractals are shaking up the world of mathematics and deepening our understanding of nature.
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