Elon Musk posted an article "BACKGROUND ON TONIGHT'S LAUNCH" on SpaceX's website 15 minutes before the launch. Link : http://www.spacex.com/news/2015/12/21/bac

Elon Musk posted an article "BACKGROUND ON TONIGHT'S LAUNCH" on SpaceX's website 15 minutes before the launch. Link : http://www.spacex.com/news/2015/12/21/background-tonights-launch http://www.spacex.com/news/2015/12/21/background-tonights-la...