Ars’ own Julian Sanchez has deciphered a code embedded into the TV show Fringe. Bad Robot, the production company that created the Fox TV show, has been integrating puzzles and easter eggs into shows ...

Hannah handed me a piece of paper with the following string of letters. “Each letter stands for another one,” said Hannah. “Ooh, a substitution cipher!” I thought. But I was stumped. “Is this just one ...

If this anthology of six short stories that ask “What if?” doesn’t stack up against similar volumes, like The Best Alternate History Stories of the 20th Century, its well-written entries will still ...