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Researchers printed gelatin scaffolds into which they placed ovarian tissue, and then implanted the new organs in mice. Three out of seven female mice produced healthy offspring using the technology.

NPR's Ari Shapiro talks with Portland, Ore., Mayor Ted Wheeler about the train killings and the state of racism and white supremacy in the city.

The NASA has spotted enormous cyclones at the gas giant's north and south poles. The probe has also returned other data that have project scientists scratching their heads.

Research in epilepsy has found a key to why small pulses of electricity to the brain sometimes help and sometimes hurt a failing memory. Brains hurt by physical trauma or dementia might benefit, too.

NPR takes a look at what law authorized the U.S. to attack the Syrian regime, and if Congress will need to pass legislation to clear the way for subsequent action.

Matthew Bryce paddled out Sunday, but by Monday he still hadn't returned. So coast guard teams launched a dramatic rescue effort — and hours later, plucked a needle from a haystack 13 miles off-shore.

"It all just looks really bad," said anti-corruption expert Stuart Gilman. "It looks like Trump is trying to simply protect his properties."

NPR's Robert Siegel talks to Craig Timberg of The Washington Post about the tool hackers stole from the National Security Agency to conduct massive cyberattacks around the world on Friday.

Terms of the settlement have not been released. United promises changes in the way it deals with passengers.

The Department of Agriculture is curbing some school lunch standards championed by the former first lady, including stricter requirements on whole grains and sodium content.