Space Shuttle Atlantis
MLM outfittings weighing 1.4 metric tons are equipment for "Nauka" that were launched in May 2010, attached to the outside of "Rassvet" (Mini-Research Module 1) on STS-132 as part of an agreement with NASA by Space Shuttle Atlantis. The equipment includes a spare elbow joint for the European Robotic Arm (ERA) (launched with "Nauka") and a ERA portable workpost used during EVAs, a heat exchanger, radiators, internal hardware and an experimental airlock for launching cubesats, to be positioned on modified passive forward port near the bottom end of the module.