On September 11th, 2001, there was only one American on the International Space Station: Expedition Three Commander Frank L. Culbertson. That morning, after a physical examination of the other astronauts, command on the ground told Culbertson what had happened. Culbertson grabbed a camera as the ISS passed over North America and took the photo above, from two or three hundred miles up. NASA has the letters Culbertson wrote about his feelings–check them out here. [via The Atlantic]