Space Station Live: Double the Data.

NASA Commentator Lori Meggs at the Marshall Space Flight Center speaks with Michael Snyder, chair of the genetics department at Stanford University, about the Twins study on the International Space Station. In this unique experiment researchers are studying how being in a weightless environment impacts station crew member Scott Kelly during his One Year Mission, and compare that to his identical twin brother, former astronaut Mark Kelly, on Earth during the same period of time.