Whistlers and Bow Shocks: Hearing the Sounds of Space

Have you ever heard that space is a vaccuum? That space is totally silent? Well, neither of those things is exactly true. Thanks to the research of physicist Don Gurnett, we now know there are thin layers of gas in space that produce all kinds of interesting waves — including sound waves. In this segment, we talk with Gurnett about his research and listen to some downright strange and wondrous sounds from both near and deep space.