In this episode, Dr. Ken Libbrecht answers all of our snowflake questions: How are snowflakes made? Why are they different shapes? How is it that they’re all unique? And how does a scientist who lives in southern California study snow?

Hoax Hunters: Can a lake turn animals to stone?
31:47

Why do skunks stink?
30:49

Brains On presents - Rocket women: How a secret program paved the way for female astronauts
36:01