Unity Node Launches (Archive: NASA, Marshall, 12/04/98) by NASA’s Marshall Space Flight Center on Flickr.
On Dec. 4, 1998, the International Space Station (ISS) Node 1, known as Unity, was launched aboard the Space Shuttle Endeavour (STS-88) and was connected to the Russian-built Functional Energy Block Zarya two days later on Dec. 6, 1998. Unity, a six-sided connector to which all future U.S. Station modules will attach, was manufactured by The Boeing Company at the Marshall Space Flight Center in Huntsville, Ala. from 1994 to 1997 and was the first U.S. module for the ISS. This photograph shows the connected Zarya (top with solar wings) and the Unity Module after having been released from the Orbiter Endeavour’s cargo bay.
Image credit: NASA/MSFC