The crew compartment for NASA’s first crewed Orion spacecraft ... and the toilet. The backbone also provides additional structural support for the crew module. Those two major pieces of the ...

It's meant as a test: Astronauts on the ISS will test the toilet out before NASA installs an upgraded version on its Orion spaceship, which is slated to fly a crew to the moon as early as 2023.

Building on lessons learned from previous construction, Orion prime contractor Lockheed Martin has already completed four of the seven welds necessary to assemble the crew module pressure vessel.