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i'm kim brunhuber. this is cnn "newsroom." we begin with a short flight to space but a big leap for tycoons who want to turn the great beyond into a tourist destination. in less than four hours, billionaire richard branson is set to take off in a space plane built by his company virgin galactic. well, if he succeeds, he will be the first businessman to do so in a spacecraft, whose development he funded. a short time ago, he tweeted this mission statement for his upcoming flight. >> my mission statement is to turn the dream of space travel into a reality. for my grandchildren, for your grandchildren, for everyone. >> so, how does branson feel before potentially making