Aboard the International Space Station, Expedition 53 Flight Engineer Mark Vande Hei of NASA fielded questions about life and work on the orbital outpost during an in-flight educational event Sept. 18 with students from the Pine River-Backus schools in Pine River, Minnesota. Vande Hei is in the second week of a five and a half month mission on the station, having launched to the complex Sept. 13 from the Baikonur Cosmodrome in Kazakhstan.