Paul Davies, Author of "The Eerie Silence"

After 50 years of the Search for Extraterrestrial Intelligence, could it be that we are not listening for the right signal? Or are we alone? Cosmologist and prolific writer Paul Davies makes a number of fascinating suggestions in his new book. Emily Lakdawalla's best of the Planetary Society blog. Bill Nye says Neil Armstrong and Buzz Aldrin disagree about NASA's new plans. Bruce Betts and Mat Kaplan share a new song before they get to the space trivia contest in What's Up.

Related Links:

• Attend Planetary Radio Live on April 30
• NY Times Article about The Eerie Silence
• The Planetary Society's SETI Projects
• First Light Images from the Solar Dynamics Observatory
• Complete conversation with Paul Davies (MP3)