This patch commemorates the sixteenth expeditionary mission to the International Space Station ISS.

This patch commemorates the sixteenth expeditionary mission to the International Space Station (ISS). The design represents the conjunction of two unique astronomical events: a transit of the ISS across the surface of a full moon, and a nearly complete annular eclipse of the sun. The ISS is shown in its complete configuration, symbolizing the role of this expedition in preparing for the arrival and commissioning of international partner modules and components. The ISS transit across the moon highlights its role in developing the techniques and innovations critical to enable long-duration expeditions to the lunar surface and beyond. The NASA insignia design for shuttle and space station flights is reserved for use by the astronauts and for other official use as the NASA Administrator may authorize. Public availability has been approved only in the form of illustrations by the various news media. When and if there is any change in this policy, which is not anticipated, it will be publicly announced.