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The new research found that about 1 in 7 cases of breast cancer detected during screenings were false alarms.

Gun buying among African Americans has soared in recent years. So have suicide rates among young black men. Gun safety efforts and suicide prevention need to address race and cultural differences.

Shrouded in secrecy, cyberattacks are increasingly the weapon of choice for the U.S. to send a message to an adversary, rather than what the military calls kinetic measures.

Last year was a very good year for college endowment funds. A strong stock market yielded healthy returns for many Illinois institutions of higher education.

Diplomats at the United Nations are calling for peace. They held an emergency meeting after Russia blocked a security council resolution calling on Russia to withdraw.

A Ukrainian family fled their home and now are stuck on the Ukrainian side of the border with Poland in an endless line.

Scientists have solid, physical evidence indicating the COVID pandemic began at a seafood market in Wuhan, China. Data suggest the virus jumped from an animal at the market into people at least twice.

NPR's Sacha Pfeiffer talks with Democratic Rep. Jim Clyburn of South Carolina about President Biden's State of the Union address on Tuesday.

NPR's Ari Shapiro talks with earth scientist Brian O'Neill about a new major United Nations report on climate change.

The asteroid that wiped out dinosaurs hit in spring the northern hemisphere, a new study suggests. Scientists say animals in the different hemispheres may have fared differently after the event.