NPR Science, Technology, & Health

Nuclear power is emerging as an answer as states transition away from coal, oil and natural gas to reduce greenhouse gas emissions and stave off climate change.

Black diamonds are extremely rare, and are found naturally only in Brazil and Central Africa. The cosmic origin theory of "The Enigma" is based on carbon isotopes and high hydrogen content.

The Red Cross has, for the first time, declared a national blood donation crisis. Some hospitals say they're rationing blood products. And blood banks are scrambling to encourage donations.

NPR's Mary Louise Kelly speaks with Mary Mayhew, president of the Florida Hospital Association, about how the state's hospitals are navigating the Supreme Court's decision on vaccine mandates.

Some countries around the globe are still struggling to get people vaccinated. Dozens of countries still haven't gotten 10% of their populations vaccinated.

Thanks to advances in artificial intelligence, it's never been easier or more affordable to make a perfect facsimile of a human voice: a celebrity, a world leader or even a public-radio reporter.

The nation imposed the new mandate on Monday as it looks to bring its vaccination rate closer in line with the EU average. The unvaccinated will face penalties starting at 50 euros, or roughly $57.

Photographer Raphael Alves documented how socioeconomic issues worsen the COVID-19 pandemic in the state of Amazonas, Brazil.

Coronavirus cases are still at pandemic highs with more than 800,000 new cases reported daily. But there are signs this surge may begin to abate soon, and some places may already be past their peak.

As COVID hospitalizations surge, hospitals in southern states can no longer avoid paying competitive wages for traveling nurses, and that creates tension with local nurses who are usually paid less.