Six companies create the content that consumes 85 percent of U.S. viewing hours, Moffett said. "Until they get onboard, the train's not leaving the station."
"That term implies you are there to take photos and hang out," Garriott says. "I'm trying to prove you can actually be a valuable contributor to the activities onboard the space station."
The unmanned supply ship docked with the station Wednesday bringing propellant water experiment hardware and other items to the three crew members onboard.