It may have taken longer than expected, but the International Space Station is slowly starting to come up to full speed, with a new solar array now fully unfurled after being installed earlier during Atlantis' mission. Measuring 240 feet long, the twin solar panels are the third of four "wings" to be installed on the Space Station, which are required to provide the necessary power to the new modules set to be attached to the ISS later this year and next. Before they can be put into service, however, the astronauts have to retract part of an older solar array in order to make room for the new wings to rotate, which so far appears to be going off without a hitch.

[Via, photo courtesy of NASA]

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