Configuration for menus. For 1 hour and 56 minutes on Tuesday, flight controllers in Moscow fired up one of the engines on Functional Cargo Block Zarya, lifting the Russian-built component that is the first part of the International Space Station into its final orbit. It circles the Earth once every 92 minutes, at a distance of roughly 389 kilometres.
Unity fits snugly withing the space shuttle challenger.
Click on the image to for a closer look. The six-sided Unity is planned to be little more than a passageway itself, albeit an important one. It's equipped with 6 separate attachment ports, which will eventually connect with all future U.S. modules such as the U.S. laboratory and habitation modules. One will connect with Zarya. The pressurized MAting Adapter being constructed at the Kennedy Space Center.