So what do astronauts do when they're not conducting space walks, working out, repairing robotic arms, or in Coleman's case, talking to Sandra Bullock or playing the flute? "I talk to my family -- during my last mission, I talked to my family every day but three through Internet protocol on the phone or video conferences."

Coleman also took advantage of the time to relax and bond with fellow crew members. "Friday night after all the work is done, we're all pretty tired, so we'll sit around ... float around. Sometimes we'll get a chance to eat dinner together, which we don't get to do often, or we'll watch some TV. It was three Russians, two Italians and two Americans, so we usually revert to something easy to understand, and something physically comical. In most cases "The Big Bang Theory."

Although crew members miss their families during missions, Coleman says she'd go back in a heartbeat. "If I could've brought my family, there'd be no reason to come home. You're in this magical place, the mission is so clear every minute, how much good work there is to do. You're flying from place to place, you're living the life of Peter Pan. I love it," she says. Will Coleman be Skyping from space with other Hollywood A-listers any time soon? "I am in line to go back ... but the line is long, so we'll see."