After ensuring that all the arks had landed safely on Io, Hao Ren and Lorenz discussed the details of their landing and decided to open up the dome of the ark—something that the ark's structure allowed. When the dome was opened, the enclosed spherical sanctuary within would transform into a flat terrain. It was only then that the ark's life support system and propulsion system, which was located at one end of the ark, could be shut down completely and undergo reparation.