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Uncovered coffins, papyrus documents and other artifacts have recently been found at the Saqqara site in Giza, Egypt. It coincides with a new accusation that jewelry was stolen from the site.

K. Barry Sharpless from Scripps Research in La Jolla won the Nobel Prize in Chemistry for the development of click chemistry and bioorthogonal chemistry.

Companies are building carbon dioxide pipelines as a possible climate solution. But after a pipeline rupture sent dozens to the hospital in a Mississippi town, there are questions about their safety.

Nitrate contamination of well water has been a decades-long problem in the San Joaquin and Salinas valleys — and now stormwater has flushed more fertilizer and manure into aquifers.

Republican Party divisions over who would lead the House, debates over the debt ceiling and other conflicts have revived a years-long conversation about what it even means to be conservative.

NPR talked to hundreds of people over the course of the pandemic. As the emergency declaration ends on May 11, we asked some of them for their reflections on the past three tumultuous years.

People who get regular short bouts of exercise are less likely to develop diabetes, dementia and heart disease, a new study finds. And an added benefit - regular movement puts people in a better mood.

Voters will decide whether or not to allow sports betting in November. Propositions 26 and 27 would both make sports betting legal in California.

Two San Diego County teachers were among 117 teachers, mentors and mentoring organizations who received Presidential Awards for Excellence in Mathematics and Science Teaching or Mentoring from President Joe Biden Tuesday.

For years, chocolate-lovers have pointed to studies suggesting compounds in cocoa may be good for heart health. But some of the recent evidence comes from flavanol-rich cocoa, not from candy bars