Prince Philip Visits NASA's Goddard Space Flight Center

Prince Philip tours Goddard Space Flight Center in Greenbelt, Maryland. Astronauts Megan McArthur and Scott Altman explain how they maneuver the robotic arm to service the Hubble Space Telescope during a servicing mission. NASA and the British National Space Centre collaborated on the Hubble project. The royal couple's appearance was one of the last stops on a six-day visit to the United States.