Don't miss the live chat for the new six part series When We Left Earth: The NASA Missions on The Discovery Channel! For the space program's 50th anniversary, NASA has unlocked it's vaults to reveal mission and training footage completely restored and remastered for this limited HD television experience. Now, viewers will have their chance to ask questions to Executive Producer, Bill Howard about the series, and the missions that took man into the unknown reaches of space for the first time in history. The live online chat will take place Saturday, June 14th @ 10 PM ET. Submit your questions now at: http://chat.liveworld.com/events/nasa/