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For a few weeks in late spring, thousands of fireflies emerge at the Congaree National Park in South Carolina to blink in synchrony. Scientists are trying to learn their secrets and to protect them.

The FDA's proposed rule would take a large step in shedding light on the potential harm that formaldehyde can cause to the many Black women who typically use hair straightening products.

This weekend in the arts: La Jolla Playhouse's "Primary Trust"; "My Intimate Partner at OMA; The San Diego Symphony's "Resurrection"; Aoife O' Donovan; San Diego Tijuana International Jazz Festival; Naomi Nadreau and Hiroshi McDonald; Kids Free San Diego; live music picks and more.

There was a collective jump Tuesday at the Fleet Science Center in Balboa Park. Hundreds of students tried to make enough motion to be picked up by homemade seismographs.

While it’s a total solar eclipse, San Diego isn’t in the path of totality. Residents will see a partial eclipse.

Some otters rely on tools to bust open hard-shelled prey items like snails, and a new study suggests this tool use is helping them to survive as their favorite, easier-to-eat foods disappear.

Dinocephalosaurus orientalis's snake-like body was 16 feet long and lived in Triassic China. The newly revealed specimen allows scientists to depict the creature in full for the first time.

The nation — and Olympic athletes, like Noah Lyles — are in another summer surge of COVID infections. CDC officials say the virus has become endemic. That means it is here to stay in a predictable way.

Scientists scanned the brains of people who took psilocybin, including a member of the research team. The scans showed how the drug disrupts key networks, potentially enhancing brain plasticity.

In a parking lot and on San Francisco Bay, NPR witnesses two different tests for solar geoengineering to tackle climate change. With much science unsettled, experts say regulations aren't keeping up.