JSC2010-E-052990 (May 2010) --- Computer-generated artist?s rendering of the International Space Station as of May 12, 2010. Soyuz 21 (TMA-17) undocks from to the Zarya nadir port and relocates to the Zvezda Service Module?s aft port. Progress 37 resupply vehicle is linked to the Pirs Docking Compartment and Soyuz 22 (TMA-18) remains docked to the Poisk Mini-Research Module 2 (MRM2).