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  Science meets circus at the World Maker Faire

The World Maker Faire in Queens was a carnival of robots, engineers, rockets and computer geekery. Plus, a giant mousetrap!


The little pink pill

After Viagra became a blockbuster drug, Big Pharma began searching for a version of the pill for women. Need to Know takes a look at the latest effort to create a “female Viagra.”

      American Voices
      The Watch List
      climate desk