Jeff, you've dreamed of this your whole life: Bezos' sister ahead of flight

World's richest person Jeff Bezos' sister Christina Bezos shared a message for her brothers ahead of their flight to space on Tuesday. "Jeff, this is something you've dreamed of your whole life and your passion for space is infectious," Christina said. To her brother Mark, she said, "You're the best champion when it comes to encouraging us in our adventures."