Russian cosmonaut Anton Shkaplerov (L) hands over "the keys" to the International Space Station to NASA astronaut Thomas Marshburn (R) on March 29 as Shkaplerov, fellow cosmonaut Pyotr Dubrov and NASA astronaut Mark Vande Hei return to Earth. File Photo courtesy of NASA | <a href="/News_Photos/lp/c1e19741593373fb3ed3bf751a00c1ef/" target="_blank">License Photo</a>