Queen Elizabeth II greets employees on her walk from NASA’s Goddard Space Flight Center mission control to a reception in the center’s main auditorium, Tuesday, May 8, 2007, in Greenbelt, Md. Queen Elizabeth II and her husband, Prince Philip, Duke of Edinburgh, visited the NASA Goddard Space Flight Center as one of the last stops on their six-day United States visit. Photo Credit: (NASA/Bill Ingalls)

Queen Elizabeth II talks with students at a NASA Explorer School Workshop, at NASA's Goddard Spaceflight Center, Tuesday, May 8, 2007, in Greenbelt, Md. Queen Elizabeth II and her husband, Prince Philip, Duke of Edinburgh, visited the NASA Goddard Space Flight Center as one of the last stops on their six-day United States visit. Photo Credit: (NASA/Pat Izzo)

Queen Elizabeth II greets children on her walk from NASA’s Goddard Space Flight Center mission control to a reception in the center’s main auditorium, Tuesday, May 8, 2007, in Greenbelt, Md. Queen Elizabeth II and her husband, Prince Philip, Duke of Edinburgh, visited the NASA Goddard Space Flight Center as one of the last stops on their six-day United States visit. Photo Credit: (NASA/Bill Ingalls)

Queen Elizabeth II greets employees on her walk from NASA’s Goddard Space Flight Center mission control to a reception in the center’s main auditorium, Tuesday, May 8, 2007, in Greenbelt, Md. Queen Elizabeth II and her husband, Prince Philip, Duke of Edinburgh, visited the NASA Goddard Space Flight Center as one of the last stops on their six-day United States visit. Photo Credit: (NASA/Bill Ingalls)

Queen Elizabeth II, left, prepares to talk with the International Space Station crew along with NASA astronaut Michael Foale, right, and NASA Administrator Michael Griffin (not pictured) from NASA’s Goddard Space Flight Center‘s Operational Control Room, Tuesday, May 8, 2007, in Greenbelt, Md. NASA Goddard was one of the last stops on the Queen's six-day visit to the United States. Photo Credit: (NASA/Bill Hrybyk)

Queen Elizabeth II talks with NASA astronaut Piers Sellers at NASA's Goddard Spaceflight Center, Tuesday, May 8, 2007, in Greenbelt, Md. Queen Elizabeth II and her husband, Prince Philip, Duke of Edinburgh, visited the NASA Goddard Space Flight Center as one of the last stops on their six-day United States visit. Photo Credit: (NASA/Pat Izzo)

Queen Elizabeth II and Prince Philip, The Duke of Edinburgh look on as Goddard employees demonstrate “Science on a Sphere.” This system, developed by the National Oceanic and Atmospheric Administration (NOAA), uses computers and four video projectors to display animated images on the outside of a 6-foot diameter sphere. Photo Credit: (NASA/Pat Izzo)

Queen Elizabeth II, left, prepares to talk with the International Space Station crew along with NASA astronaut Michael Foale, right, and NASA Administrator Michael Griffin (not pictured) from NASA’s Goddard Space Flight Center‘s Operational Control Room, Tuesday, May 8, 2007, in Greenbelt, Md. NASA Goddard was one of the last stops on the Queen's six-day visit to the United States. Photo Credit: (NASA/Bill Hrybyk)

Queen Elizabeth II and NASA Administrator Michael Griffin plant a commemorative tree on the grounds of the visitor's center during a visit to NASA's Goddard Space Flight Center, Tuesday, May 8, 2007, in Greenbelt, Md. The Royal couple's appearance was one of the last stops on a six-day visit to the United States. Photo Credit (NASA/Debbie McCallum)

Queen Elizabeth II speaks with STS-116 astronaut Nicholas Patrick, back to camera, as NASA Administrator Michael Griffin, right, looks on at the NASA's Goddard Space Flight Center, Wednesday, May 8, 2007, in Greenbelt, Md. The Royal couple's appearance was one of the last stops on a six-day visit to the United States. Photo Credit (NASA/Paul E. Alers)

Queen Elizabeth II, lower right, talks to Expedition 15 crew members from left, NASA astronaut, Sunita Williams, Russian cosmonaut Fyodor N. Yurchikhin and cosmonaut Oleg V. Kotov aboard the International Space Station crew along with NASA Administrator Michael Griffin, lower left and NASA astronaut Michael Foale during a downlink at the NASA's Goddard Space Flight Center Operational Control Room, Tuesday, May 8, 2007, in Greenbelt, Md. NASA Goddard was one of the last stops on the Queen's six-day visit to the United States. Photo Credit: (NASA/Bill Ingalls)

Employees at NASA's Goddard Space Flight Center wait to greet Queen Elizabeth II, Tuesday, May 8, 2007, in Greenbelt, Md. Queen Elizabeth II and her husband, Prince Philip, Duke of Edinburgh, visited the NASA Goddard Space Flight Center as one of the last stops on their six-day United States visit. Photo Credit: (NASA/Bill Ingalls)

ISS022-E-012031 (16 Dec. 2009) --- Greater Bridgetown area, Barbados is featured in this image photographed by an Expedition 22 crew member on the International Space Station. Bridgetown is the capital city of the island nation of Barbados, located to the east of the Lesser Antilles Island chain. While Barbados is considered to be part of the Lesser Antilles, it is located within the western Atlantic Ocean rather than the Caribbean Sea region. Bridgetown is the largest city in Barbados in addition to being the seat of government. Barbados is a member of the British Commonwealth, and considers Queen Elizabeth II to be its constitutional monarch. Bridgetown, and the surrounding towns that make up the Greater Bridgetown area, is located along the southwestern coastline of the island. The metropolitan area is readily recognized in this image due to the gray and white rooftops and street grids (center) that contrast with green vegetated fields and riparian areas of the island?s interior to the northeast (top center). Bridgetown is a major port destination for both commercial and cruise ships serving the eastern Caribbean ? several ships are visible within Carlisle Bay. Water color in the image changes from light blue along the coastline ? indicating shallow water ? to the dark blue of deeper water away from the island.