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Toxic Chemicals in Fruits and Vegetables Are What Give Them Their Health Benefits
Chemicals that plants make to ward off pests stimulate nerve cells in ways that may protect the brain against diseases such as Alzheimer's and Parkinson's
Found: Life under Antarctica's Ice
An astonishing discovery is forcing scientists to reconsider whether life can exist in the most extreme places on Earth and in space
Perovskite Solar Cells Could Beat the Efficiency of Silicon
An upstart material—perovskite—could finally make solar cells that are cheaper and more efficient than the prevailing silicon technology
How Wolf Became Dog
Scientists are racing to solve the enduring mystery of how a large, dangerous carnivore evolved into our best friend