neil degrasse tyson, thank you so much. ciate your time, and thank you for making this cool documentary. >> i'm happy. thanks for thinking about it. thank you. >> neil degrasse tyson is the director of the hayden planetary yum. the pluto files were inspired by dr. tyson's book of the same title. it's going to air tomorrow pbs at 8:00 eastern. >>> coming up, keith addresses his experience about life panels and his experience with them. we'll be right back. stay with us. for-barbers business. and the this-won't- hurt-a-bit business. because we don't just work here. we live here. these are our families. and our neighbors. and by changing lives we're in more than the energy business we're in the human energy business. chevron. explorers, great thinkers. they're the future of america, so let's bring them up right and give them our cheese. ♪ kraft singles. the american cheese. we love getting our outback dirty. because it seems like the dirtier it gets, the more it shines. the subaru outback®. motor trend's 2010 sport/utility of t