One may need extraordinary luck, strength, brains and good looks to get on a government-financed space ride like the one awarded to Ko San on Wednesday. For billionaires like Kim Taek-jin, however, there is a faster and less bothersome way: Buying his way into the mock flight experience. Kim, the founder and CEO of NCsoft, will take a zero-gravity flight out of an airport in Texas this Friday, local time, the company said. He will be accompanied by 30 Koreans and some of the company's employees, who were lucky enough to be picked into the program. The zero-gravity flight provides...