Premieres Wednesday, Oct. 22, 2025 at 9 p.m. on KPBS TV / KPBS+. Deep in the Arabian Desert lie thousands of enigmatic stone megastructures whose true form is visible only from the sky. Follow ...

Algorithms are designed to make medicine more accurate. But when race is factored in, they can worsen inequality. NOVA is available to stream on pbs.org and the free PBS App, available on iPhone, ...

Diseases that were largely eradicated in the United States a generation ago—whooping cough, measles, mumps—are returning, in part because nervous parents are skipping their children's shots. NOVA's ...