CAPE CANAVERAL, Florida - A pair of astronauts are spacewalking again outside the International Space Station.

Spacewalkers Andrew Feustel and Mike Fincke floated out Wednesday morning. It is the third spacewalk of shuttle Endeavour's final voyage.

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This time, Feustel and Fincke will work on the Russian segment of the orbiting complex. They will install cables to provide more power to the Russian side of the house. They will also hook up an attachment for the space station's robot arm.

The two tried a new spacewalk preparation method of light exercise, before stepping out.

This is NASA's next-to-last space shuttle flight. One more spacewalk is planned, then Endeavour will undock from the space station and head home. Landing is set for June 1.