The Unity Module is the core of the International Space Station, the hub connecting all the specialized modules into a functional structure. When joined with the Zarya module, the pair turned an ...

This unique orientation of the Northrop Grumman Cygnus space freighter attached to the Unity module is pictured from the Russian segment of the International Space Station. At lower center, in front ...

The first mission of Northrop Grumman's big new cargo spacecraft is nearly over. That freighter, known as Cygnus XL, left the International Space Station (ISS) on Thursday morning (March 12), ending a ...

The Unity module, the second module of the International Space Station (ISS), was launched on December 4, 1998. It was the first US-built component of ISS, constructed for NASA by Boeing in a ...