compared to the moon maybe, the 747's wing span is longer than the wrights first flight!(212ft as i recall). in fact untill recently the 747 was the largest COMMERCIAL(yes i know there are military aircraft that are marginally larger) aircraft in the world. the C5 galaxy, the C17, the an-124, and the an-224(?) are larger, and have larger payloads that the 747, but again marginally.