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The U.S. is ramping up construction of new “plutonium pits” for nuclear weapons
A quarter of a century after detecting dark energy, scientists are still trying to figure out what it is
A road trip through the communities shouldering the U.S.’s nuclear missile revival
Changing how dyslexia is diagnosed could help many more children learn to read
These fallout maps show the toll of a potential nuclear attack on missile silos in the U.S. heartland