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A research team from multiple universities is developing technology that can detect salmonella contamination in a matter of minutes. They aim to take the results from sensors and pair them with other data to strengthen the safety and resilience of the supply of chicken.

Hilary drenches Southern California, flooding roads and closing schools. An anti-corruption crusader wins the presidency in Guatemala. Plus, how to optimize your air quality at home.

The footage of humpback whales exfoliating their skin with sand offer new insight into these animals' complex lifestyles deep beneath the ocean

As much as 7 inches of rain fell on some parts of Southern California, leaving the region vulnerable to floods and mudslides as the rain eases and moves north.

The first Republican presidential primary debate is this Wednesday at 9 p.m. ET. Let us know what you want to know as the candidates take the stage.

Wondering how to prepare for sleep disruption? Should you take melatonin or other sleep aids? Here's answers from researchers and seasoned travelers — including NPR's international correspondents.

Heavy rain associated with the system is creating "catastrophic and life-threatening flooding," the weather service said. Some roadways in Southern California have flooded.

No candidate in Sunday's special presidential election received enough support to be declared winner. The vote took place amid thousands of police officers and soldiers deployed across the country.

Spain's victory over England came less than a year after a near-mutiny by its players last year. Its win made it the first European team to win the Women's World Cup since Germany in 2007.

NPR's Ayesha Rascoe speaks to Sudan scholar Alex DeWaal about the current political crisis and fighting in Sudan.