The last written work of the apostle John was his enigmatic Apocalypse, or the book of Revelation. Why is the book so puzzling, and what is its message for today?
What does it take to achieve a long and prosperous life? In The Blue Zones, National Geographic writer and explorer Dan Buettner relates his attempt to find out.
Why the long fascination with superheroes? Does it indicate a deep-seated hope people have that someone will save them from the current peril or crisis?