International Space Station program ocean was found to be possible only with Russia's assistance. At the time ISS was launched, the Russian Space Agency had experience from de-orbiting the Salyut 4, 5, 6, and 7 space stations, while NASA's first intentional controlled de-orbit of a satellite (the Compton Gamma Ray Observatory) would not occur for another two years. NASA currently has no spacecraft capable of de-orbiting the ISS at the time of decommissioning. Skylab, the only space station built and launched entirely by the US, decayed from orbit slowly over 5 years, and no attempt was made to de-orbit the station using a deorbital
International Space Station The hatch leading into the module remains closed except for periodic visits by space station crew members for inspections and data collection. The module was originally planned to be jettisoned from the station following the test, but following positive data after a year in orbit, NASA has suggested that it could remain on the station as a storage area. The International Docking Adapter (IDA) is a spacecraft docking system adapter being developed to convert APAS-95 to the NASA Docking System (NDS) / International Docking System Standard (IDSS). IDA-2 was launched on SpaceX CRS-9 on 18 July 2016. It was attached