Shuttle Astronauts Add The ISS’s Last Major Piece

From Discover Magazine:

The International Space Station is almost done. Astronauts on board the current space shuttle Endeavour completed the first of three spacewalks to install the last major component of the ISS: the Tranquility module. Its huge windows will offer ISS residents 360-degree view of space, the station, and our home world.

The U.S. Tranquility module — shaped like a soda can — is the last major American addition to the station, now 98% complete. Its placement completes 11 years of U.S. construction work on the outpost, which the United States has spent more than $50 billion building [USA Today]. An Italian team designed the module’s magnificent dome, which measures 10 feet in diameter. Seven windows provide the panoramic view.

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