NASA astronauts successfully complete second of three spacewalks for ISS maintenance

Two US astronauts embarked on a spacewalk to repair to the International Space Station's robotic arm. This NASA

Space Station Astronauts Taking Spacewalk Today: Watch It Live

The astronauts will lubricate components of a new hand they installed on the space station's Canadian-built robotic arm during an October 5 spacewalk.

Commander Randy Bresnik and Flight Engineer Mark Vande Hei called down to Mission Control today to discuss the elements of Tuesday's successful spacewalk.

This was the second of three spacewalks planned for October.

Bresnik and Vande Hei are slated to exit the Quest airlock around 8 a.m. EDT (1200 GMT).

This was the second #spacewalk of these astronauts in the last five days.

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As EV 1, Bresnik will wear the suit with red stripes.

NASA said. It ended six hours and 26 minutes later. The pair also lubricated the latching end effector of space station's 58-foot-long robotic arm.

The lubrication work included the use of grease gun to grease the big robotic arms' new hand and keep the latching mechanism working smoothly. The October 18 spacewalk will mark the third of Acaba's career. Actually, the latches, or hands, are located on each end of the Canadian-built robot arm, and they are used to grab the arriving U.S. cargo ships and also enable the robot arm to move around the orbiting lab.

They also completed a variety of additional tasks, including replacing a smudged lens cover and removing two handrails from outside the tranquility module in preparation for a future wireless antenna installation.

The third and final spacewalk this month will occur next Wednesday (Oct. 18), when we'll see Bresnik head out with NASA astronaut Joe Acaba to finish lubricating the LEE and replace a few old HD cameras.

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