NASA Enthusiast PAT DAUGHERTY KBIA | By Paul Pepper Published February 15, 2013 at 8:50 AM CST Facebook Twitter LinkedIn Email Listen • 8:21 Today Paul Pepper welcomes back PAT DAUGHERTY, retired NASA education specialist, who shares more insights into the science behind what NASA is up to these days.http://www.youtube.com/watch?v=KThWCs6ZOGQ