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Brazil has long faced outbreaks of dengue fever. But Acre State was immune — until very recently. Now there's a possible explanation.

Computers that can not only analyze our language but fully comprehend it, learn it, and act on it. A field of AI research called Deep Learning is evolving…

We’re building something better for you. On Wednesday, July 1, the current member portal will be “under construction” as we prepare to launch an upgraded experience.

She was a record-breaking mountaineer, educator and suffragist.

The PBS NewsHour and POLITICO are hosting the sixth Democratic debate on Dec. 1, 2019.

In Athens, Ohio, a classic Tutor Revival house is now being used as a space for non-profits.

Johnny and Matthew Gaudreau were honored before the game with the Gaudreau family in attendance.

The U.S. had to beat Iran to advance in the World Cup. Iran had to just tie in order to move on. The U.S. will go up against the Netherlands in the Round of 16.

U.S. Defense Secretary Pete Hegseth lashed out at NATO allies on Thursday, announcing a review of American forces in Europe, and calling for a reboot of the organization to turn it into a "NATO 3.0."

Operation Absolute Resolve, which resulted in the capture of Nicolás Maduro, echoes the 1990 U.S. invasion of Panama that brought down Manuel Noriega. But big differences abound.