Sir Richard Branson told a couple of days ago that Virgin Galactic has been his most toughest project. The difficulty of the project has been a surprise and schedule have not kept even though they have 200 engineers at work. Branson does not fly into space before it is safe. Last year, he estimated that he will be flying to space by the end of 2014. It will not happen. At the end of 2014 is expected that the first test flights into space will happen.

CNN video