Today’s puzzle illuminates one of the smash hits of theoretical computer science, a mind-boggling result that left even experts in the field gobsmacked.We’ll get to that result (the PCP theorem) later. But first, to the challenge!It’s a word puzzle. Crossword-... More »
Reporter Lee Speigel devoted his career to unexplained phenomena and will be remembered for organizing the first meeting on UFOs at the United Nations. His friends, family and fans are launching his cremated ashes into space.Illustration: Chris McGonigal/HuffP... More »
What Is Dry Aged Steak? Have you ever tried dry-aged beef? As a little kid, my dad took me to a restaurant in New York City and let me taste his dry-aged steak. I didn't like it at all, but my father told me it was an acquired taste. It was the earthiness I di... More »