Popping Ears
Why do your ears pop during altitude changes? (Can't keep up with changing air pressure.)
Good
Blood Clot Corkscrew
A corkscrew device can remove blood clots to reduce the damage of strokes.
Longevity Roundup
Genes that lower cholesterol lower it too much in old age, and a gene that lengthens life span.
Desert Dash
A race for autonomous vehicles from Los Angeles to Las Vegas with $1 million prize
Comets and Prejudice
Comets splash rubble from Earth to other planets, and anger fuels prejudice.