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Space station gets room with a view
Astronauts begin to install space window in final phase of space station construction.
Last Modified: 12 Feb 2010 04:25 GMT

A computer-generated image shows the kind of views the new window will provide [Nasa]

Astronauts have begun the final phase of large-scale construction work on the International Space Station, including the installation of a domed observation module expected to provide spectacular views of Earth from space.

The lookout dome, known as the Cupola, is part of a $400m European-built extension to the ISS known as the Tranquility module.

Once it is bolted onto the orbiting platform the space station will be 98 per cent complete.

Late on Thursday US time astronauts Robert Behnken and Nicholas Patrick began the first of three spacewalks to install the new module.

Tranquility and its attached Cupola were blasted into space earlier this week aboard the space shuttle Endeavour, on one of the shuttle's final visits to the space station.

Nasa, the US space agency, has plans for just four more shuttle flights before the three remaining shuttles in the fleet are retired from service.

Panoramic views

Once in place Tranquility and its Cupola lookout will provide the station's crew with breathtaking panoramic views back to Earth and out into space.

Astronauts will conduct three space walks to install the new module [Nasa TV]
The domed lookout is made up of nine windows, including the largest window deployed in space measuring 80cm in diameter.

Currently space station residents are restricted to just six far smaller portholes as their only visual connection with the cosmos outside.

A Nasa press release dubbed the window the space station's newest and best "eye-pod".

Each window pane on the lookout is made of specially toughened glass and has a petal-like cover that will protect the windows from collisions with micro-meteorites and other space debris.

Earth gazing

Inside the Cupola dome computer workstations will give astronauts full control over the space station's robotic arm, as well as providing opportunities for Earth observation studies better than any satellite can provide.

But aside from use in scientific observations, spacecraft docking and station maintenance work, Nasa says the lookout will also serve as an important psychological connection with Earth for crews aboard the space station, and provide a space for them to unwind.

"Crews tell us that Earth gazing is important to them," said Julie Robinson, the ISS Program Scientist at Nasa's Johnson Space Centre.

"The astronauts work hard up there and are away from their families for a long time. Observing the Earth and the stars helps relax and inspire them."

Source:
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