the United States described at URL: https://images.nasa.gov/details-as17-146-22296 operator: National Aeronautics and Space Administration determination
Template:PD-USGov-NASA described at URL: https://images.nasa.gov/details-as17-146-22296 operator: National Aeronautics and Space Administration described at
the United States described at URL: https://images.nasa.gov/details-as17-146-22296 operator: National Aeronautics and Space Administration retrieved: 21