Physicists' understanding of the nature of the universe has taken a blow. An experiment with neutrinos has produced a result that breaks the rules scientists think govern the subatomic world.
Up to 32 percent of kids with food allergies have been taunted with foods that make them sick. Schools are moving beyond allergy awareness and "nut-free zones" to address this dangerous behavior.
An experimental therapy seems to have eradicated cancer in a patient with metastatic breast cancer who had failed every other treatment. The goal is to reliably repeat that success in more people.
Ben Lecomte is the first person to try to swim across the Pacific Ocean. NPR's Lulu Garcia-Navarro talks to him from Choshi, Japan, before he departs to attempt the 5,500-mile journey.