Musk showed up at Branson's kitchen at 3 am to wish him best for space flight

World's second-richest person Elon Musk showed up at British billionaire Richard Branson's kitchen at 3 am to wish him the best for his Virgin Galactic space flight, Branson revealed at a press conference. "I'd already been to bed and he still hadn't gone to bed," Branson said. He added, "He's (Musk) an all-nighter and our time clocks are completely different."