ESA's Erasmus centre for human spaceflight and microgravity research being explored by visitors to the Sunday 4 October 2015 ESTEC Open Day. To the right can be seen a full-sized replica of Europe's Columbus module attached to the International Space Station, with a model ISS hanging from the ceiling. To the far left are cutaway scale models of ESA's ATV and NASA's crewed Orion spacecraft, to which ESA is contributing the ATV-derived service module.
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