Rex Walheim has flown to the International Space Station three times. Now this space veteran is helping NASA hire a new crop of astronauts, and he wants you! Emily Lakdawalla tells of three young explorers, including her five-year-old daughter. Bill Nye says we should make space science and exploration a New Year's resolution. Bruce Betts and Mat Kaplan preview next week's Planetary Radio Live and begin a new space trivia contest.