Integrated Truss Structure

EVA view of the ISS solar arrays and steel truss structure. The white cladding are Kevlar panels to protect from micro-meteoroids
ISS elements as of December 2022 in exploded view.

The Integrated Truss Structure (ITS) of the International Space Station (ISS) consists of a linear arranged sequence of connected trusses on which various unpressurized components are mounted such as logistics carriers, radiators, solar arrays, and other equipment. It supplies the ISS with a bus architecture. It is approximately 110 metres (360 feet) long, weighs slightly under 118 tonnes (260,000 lb) with all its attached equipment, and is made primarily from aluminium and stainless steel.

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