Destiny (ISS Module) - Laboratory Structure

Laboratory Structure

The aluminum U.S. laboratory module is 28 feet (8.5 m) long and 14 feet (4.3 m) wide. It comprises three cylindrical sections and two endcones that contain the hatch openings through which astronauts enter and exit the module. The aft port of Destiny is connected to the forward port of the Unity node, and the forward port of Destiny is connected to the aft port of the Harmony module. A 20-inch (510 mm)-diameter window is located on one side of the center module segment.

Each of the two berthing ports on Destiny contains a hatch. Both hatches are normally open, and remain open unless a situation arises requiring a module to be isolated. Each hatch has a window. The hatches can be opened or closed from either side. The hatches have a pressure interlock feature, which prevents the hatch from being opened if there is a negative pressure across the hatch (higher pressure on the outside of the hatch).

Destiny has a 20-inch (510 mm) optically pure, telescope-quality glass window located in an open rack bay used primarily for Earth science observations. Station crewmembers use very high quality video and still cameras at the window to record Earth's changing landscapes. A window shutter protects the window from potential micrometeoroid and orbital debris strikes during the life of the ISS. The crew manually opens the shutter to use the window.

Imagery captured from Destiny's window has given geologists and meteorologists the chance to study floods, avalanches, fires and ocean events such as plankton blooms in a way never seen before, as well as given international scientists the opportunity to study features such as glaciers, coral reefs, urban growth and wild fires.

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