Steven Falk of Lafayette, Calif., has resigned because he says he cannot carry out policies that fail to address the urgent threat of a changing climate.
New research shared exclusively with NPR suggests that Pyongyang is refining its weapons technology through open scientific research. China leads the way in scientific collaboration with North Korea.
As the number of people who inject drugs and share needles has soared, the rate of infection with hep C has climbed, too. Yet many drug treatment patients aren't tested for the liver-damaging virus.
U.S. Surgeon General Jerome Adams issued a forceful advisory about vaping by U.S. teenagers, saying electronic cigarette use among young people has reached levels that require urgent action.
The comet 46P/Wirtanen just made its closest approach to Earth in centuries. No word on the whereabouts of Dasher, Dancer, Prancer, Vixen, Cupid, Donner or Blitzen (and Rudolph).
When Nikki and Danny Miller's two young sons developed strange symptoms, they began searching for a diagnosis. Their odyssey ended when a team of medical sleuths solved the case.
Tech startups are using animal stem cells to grow meat. Big meat companies, including Tyson and Cargill, are investing in the technology, while livestock producers are trying to fight it.
Nations agreed on rules to track the promises they made to reduce emissions, but did not set new emissions reduction goals necessary to avoid the most catastrophic effects of climate change.
As a major climate conference nears its end in Poland, negotiators are still haggling over the rules nations must follow in order to meet their commitments to reduce greenhouse gases.
Downy mildew, once just a nuisance, has evolved into a devastating adversary to the pickle, as it now quickly adapts to fungicides and pickle hybrids, and can lay waste to crops in a matter of days.