challenger space shuttle exploded seconds after lifting off, killing seven people onboard. one of them was christa mcauliffe, a teacher from new hampshire, who was trying to be the first civilian in space. we have four civilians in space now. christa mcauliffe was trying. while she never made it, she had quite a huge impact on so many generations of people who have been inspired by her work and what she was doing as a teacher. i'm joined by two of them, former students. kristin and holy. holly. thank you for being here. >> thank you. >> good morning. >> kristin, let me start with you. you were both high school students of christa mcauliffe alt the time. you watched at her rocket listed off in horror, no doubt. as you're watching the "inspiration4" lift-off at