With its cargo off-loaded (background), the nose cone of the Super Guppy aircraft is closed. The cargo is a P3 port-side truss, a segment of the International Space Station (ISS). The truss is scheduled to be added to the ISS on mission STS-115 in 2002 aboard Space Shuttle Atlantis. The second port truss segment, P3 will be attached to the first port truss segment (P1). The P3 truss will be taken to the Operations and Checkout Building.