Spacewalking astronauts grease robot arm's new hand

Spacewalking astronauts grease robot arm's new hand

Spacewalking astronauts grease robot arm's new hand

NASA astronauts took another spacewalk outside the International Space Station on Tuesday, this time to grease the robot arm's new hand.

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 #spacewalk of these astronauts in the last five days.

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

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Bresnik will conduct another spacewalk October 18 with NASA astronaut Joe Acaba to finalize the servicing on the Canadarm2 robotic arm.

Meanwhile, Vande Hei will retrieve a foot restraint from the Crew and Equipment Translation Aid (CETA) cart and install it to Canadarm2. NASA plans to replace the latching mechanism on the opposite end of the arm early next year. The astronauts also lubricated the latching end effector of the robotic arm during this spacewalk.

Using a type of grease gun known as the ballscrew lubrication tool, or BLT, Vande Hei will then squirt grease into the new LEE that he and Bresnik swapped out during their previous spacewalk. Bresnik and Vande Hei moved later to secondary tasks like tightening a latch on an external oxygen tank, preparing ammonia pump module to permit venting before planned relocating, removal of two handrails to prepare space for installation of wireless antennas in future, changing camera lens cover. Vande Hei got a jump ahead in some greasing chores, but the two-part job still will spill into next week, in a third and final spacewalk.

A third spacewalk in the series is scheduled October 18 by Bresnik and station flight engineer Joe Acaba.

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