Exploring the International Space Station

The space shuttle Endeavour is due to deliver a new facilitythatincludeslife-support systems, living quartersand an observation dome to the International Space Station on Wednesday.

Dubbed Tranquility, or less poetically, Node 3,the new unit will house exercise machines and a toilet and will havean expansive window, referred to as the Cupola, attached to it. The European Space Agency funded the construction of the new module and dome. After Endeavour's 13-day mission, the space station will be 98 per cent complete.

Here is a map of theISSand some of its main facilities.