Space, the final frontier: RAF Alconbury hosts video conference with NASA astronaut
Students listen as NASA astronaut and U.S. Air Force Col. Michael Hopkins describes what it is like to see the Earth from space, at night, during a video teleconference at RAF Alconbury, United Kingdom, Sept. 23, 2014. Hopkins described space as an amazing environment which makes the impossible, possible. (U.S. Air Force photo by Staff Sgt. Jarad A. Denton/Released)