Look Out! It's a Martian Avalanche!

The latest triumph of the HiRISE camera on the Mars Reconnaissance Orbiter is the image of a Martian landslide. We talk with Principal Investigator Alfred McEwen about his teams' marvelous instrument. Bill Nye the Science Guy invites you to a space policy forum. Emily Lakdawalla provides a report on the 2008 Lunar and Planetary Science Conference. Bruce Betts and Mat Kaplan give away a Planetary Radio t-shirt and announce a new space trivia contest, while Bruce explores the night sky.