I saw several friends on Facebook talking about watching the meteor shower last night. It's on again tonight and while the Perseid meteor shower is usually a pretty good show, experts say a full moon will hinder viewing. Have you ever wondered how big a meteor is? Is it more than a speck of dust? You've heard of asteroids, but what's a meteoroid and how is that different from a meteor? How fast is a meteor traveling? How many meteor showers are there each year? Those answers and more in the video below!