A file photo of American Astronaut of Indian origin Sunita Williams interacts with school children in New Delhi, India, on Oct. 1, 2007. 46-year-old Williams is scheduled to take off from the Baikonur Cosmodrome in Kazakhstan at 8.40 am tomorrow on July 15, 2012. She spent a record six months at International Space Station in 2006. Photo Credit: Indian Photo Agency