The greatest show on Earth — for kids who need it most | Sahba Aminikia

Are you a giver or a taker? | Adam Grant

The boiling river of the Amazon | Andrés Ruzo

The next step in nanotechnology | George Tulevski

Why some of us don't have one true calling | Emilie Wapnick

What's our relationship to AI? It's complicated | AC Coppens, Kasley Killam and Apolinário Passos

Sunday Pick: Friction 101: How to make the right things easier and wrong things harder | Fixable

How to protect your emotional health during the holidays | Guy Winch

Can AI master the art of humor? | Bob Mankoff

Why do we kiss under mistletoe? | Carlos Reif