Today is the Preakness Stakes, the 2nd leg of horse racing's Triple Crown. NPR's Scott Simon talks to Jonathan Finn, author of "Beyond the Finish Line," about the history and tech of photo finishes.

Skin cancer is the most common cancer in the U.S. and we need all the protection we can get. So why is it so hard to get newer, more effective ingredients approved here?

At the height of the racial reckoning, a school district in Virginia voted to rename two schools that had been previously named for Confederate generals. This month, that decision was reversed.

Students arrested at Columbia University and the City College of New York spoke with NPR about their choice to risk legal and academic consequences.

Ian Roberts has competed in some of the most high-profile races in the world. But his biggest competition to date was a determined fifth-grader in jean shorts and Nike tennis shoes.

Meanwhile, Maryland's governor signs a bill to address the surge of conversion devices, including Glock switches, that bypass a pistol's trigger mechanism, allowing the weapon to fire fully automatic.

As the Houston area works to clean up and restore power to thousands after deadly storms, it will do so Saturday under a smog warning and as all of southern Texas starts to feel the heat.

Before kicking off a three-day visit to Madrid, Argentina's libertarian President Javier Milei stirred controversy, accusing the socialist government of bringing "poverty and death" to Spain.

OpenAI's latest AI model, GPT-4o mimics human vocal cadences. NPR's Bobby Allyn speaks with Arizona State University professor Visar Berisha about how it could change our relationship with machines.

When the U.S. imposes tariffs on specific foreign-made goods, what is the effect on American consumers and on the regions and industries the tariffs were supposed to protect? It's complicated.