Nine Planets and Counting

Running Time: 33 minutes

General Audience

Available Languages: English

How many planets are there in our solar system? Nine, right? Or is it eight? Maybe it's ten, or twelve, or more? Take a tour to explore the variety of objects that populate our solar system. Along the way, we'll examine each planet individually and then step back to look at the big picture: rocky worlds compared to gas giants and more. What is a planet, anyway? The answer may surprise you.