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The unprecedented study involves using the gene-editing technique CRISPR to edit a gene while it's still inside a patient's body. In exclusive interviews, NPR talks with two of the first participants.

These structures made from living human cells are similar to human embryos at the stage when they implant in the womb. They allow scientists to research new ways to treat infertility.

After a 90-day review, U.S investigators did not turn up any clear answer on whether the coronavirus hopped from an animal to a human — or somehow escaped from a lab.

After a lengthy preparation, including enacting new outdoor lighting ordinances, Julian received the designation from the International Dark Sky Association.

Two years after its passage, a new report looks at how law enforcement agencies are complying with California's "sanctuary state" law. The report finds that compliance in San Diego isn't as strong as it could be. The flu virus is here, and as more San Diegans are getting sick, county officials are preparing for the worse. Plus, this weekend, Vanguard Culture brings together an eclectic mix of treats as it hosts it’s final event of the year with the theme: Breakthrough:The Future.

As we look back at the year, we wanted to share some of our favorite episodes of the pod. This list showcases the episodes that stayed with members of the Code Switch team, even amidst all the churn.

The ban on mask mandates was to take effect Wednesday. Before that could happen, an Arizona judge ruled that it and other laws were unconstitutional specifically because of how lawmakers passed them.

After declining most of the fall, new infections are up again in more than half of U.S. states, worrying experts about what the holiday season may bring.

From fish in jars to rare seeds and microbes, hundreds of millions of biological specimens are stored around the U.S., and caretakers are trying to make them accessible for future research.

Employers are firing workers for refusing to comply with vaccine mandates. They represent only a tiny fraction of overall employees, not even 1% in some workplaces. But it can add up to thousands.