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Some of the planets could be home to liquid water, but it remains unclear whether life could exist on such strange worlds.

In the Civil War's waning years, African-Americans trying to find lost loved ones used classified ads in newspapers. More than 900 of these notices are now accessible via an online database.

Bats, birds and tourists love a good cave. And so do viruses. Scientists say this mixture could trigger a deadly outbreak.

Republicans have ended some contentious confirmation fights for Trump Cabinet picks, but many positions remain unfilled. Jonah Goldberg of the National Review tells Steve Inskeep about what's next.

The vision: Microloans will let women start their own businesses. What do the studies show?

Replacing "alternative facts" with a footnoted, neutral point of view. Some professors say students work harder knowing their research will have a broad audience.

Yuval Noah Harari expects we'll soon engineer our bodies in the same way we design products. "I think in general medicine ... will switch from healing the sick to upgrading the healthy," he says.

Denver's innovative approach to school choice gets high marks from many parents and pundits. The program also raises questions about the limitations of choice in narrowing access and equity gaps.

After the resignation of retired Gen. Michael Flynn, President Trump has picked three-star Army Gen. H.R. McMaster to be national security adviser. He's known as an intellectual military strategist.

Oregon is in the midst of a syphilis epidemic according to the Oregon Health Authority. Cases of the disease have increased 2,000 percent over the last…