Scattered Clouds and Fog...On Mars

Mark Lemmon is part of several missions to the Red Planet and led development of the main camera on the Phoenix Lander. He has become an expert on Martian weather and climate. Bill Nye is also talking about the weather -- the wild weather we've been having on Earth. Emily Lakdawalla looks back on Mars Exploration Rover Spirit, and Bruce Betts is back with a new space trivia contest on What's Up!

Related Links:

• University of Arizona Phoenix Mars Mission Site
• Mark Lemmon at Texas A&M
• Spirit Shines on the Surface of Mars
• Spirit's Team and Fans Say Goodbye and Thanks
• Bill Nye's Your Place in Space (MP3)