Subscribe to Science Channel! | http://www.youtube.com/subscription_center?add_user=sciencechannel Andrew and Cheryl are a married Mennonite couple who live a simple and Biblical life. That is, with just one exception: they love to build rockets! | For more Large, Dangerous Rocket Ships, visit http://science.discovery.com/tv/ldrs-rocket-ships/#mkcpgn=ytsci1