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ISS is the acronym for "International Space Station". It is a space station placed in low Earth orbit that travels at a speed of 27,600 Km / h.

The International Space Station is permanently occupied by an international crew dedicated to scientific research in the space environment.

The program was initiated and piloted by the National Aeronautics and Space Administration (NASA) and developed jointly with the Russian Federal Space Agency (FKA), with the participation of the European Space Agency (ESA), Japan (JAXA) ).

The International Space Station is the largest artificial object placed in Earth orbit. It extends over 110 meters in length, 74 meters in width and 30 meters in height and has a mass of about 400 tons.

The station has a heterogeneous architecture with a Russian subset reflecting the architectural choices of the Mir station and a much larger subset developed according to standards defined by NASA.

It include about fifteen pressurized modules, four of them are devoted to scientific experiments, representing a volume of pressurized space of about 900 m3 in which 400 m3 livable.

The solar panels, with an area of ​​2,500 m2, provide 110 kW of electricity. The station moves around the Earth at an altitude maintained around 350-400 kilometers.

It has been permanently occupied since 2000. Each of the six astronauts, stay from 3 to 6 months andshares his working time between assembly operations, maintenance, and scientific tasks.

Scientific work mainly focuses on biology, in particular the adaptation of the human being to the absence of gravity, as well as the science of materials and astronomy.