Watch Live as Astronauts Fix a Robotic Arm on the ISS

Space Station Astronauts Are Taking a Spacewalk Today Watch It Live

In this first spacewalk, NASA astronauts Randy Bresnik and Mark Vande Hei will replace an aging machine called the Latching End Effector (LEE) at the end of the Space Station Remote Manipulator System (SSRMS), or Canadarm2.

Then last that means, the in third spacewalk NASA astronaut Joe Acaba will join Bresnik on October 15th to perform more changes and another camera replacement.

Expedition 53 Commander Randy Bresnik will be leading all three missions, which will focus on repairs to the robotic arm, Canadarm2.

In this frame from a computer animation, Bresnik and Vande Hei are shown working to replace the grappling mechanism on one end of the space station's robot arm that has experienced age-related problems. In the early 2000s, Canadarm2 was used to help move and install large pieces of equipment. The spacewalk is the first of three planned over the next two weeks. One LEE is connected to the ISS by attaching the arm to the station; the other is extended into space and grabs the objects. The LEEs, located at either end of the arm, also provide other crucial data through complex electronics, camera and sensors, NASA officials said, but the arm was launched over 15 years ago and is in need of fix.

But that doesn't mean it doesn't experience wear and tear.

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Two more walks are scheduled, one on October 10 and the other this month on October 18.

A spare LEE is stored outside on the station's truss.

They replaced one of two Latching End Effectors (LEE) which had lost the ability to grip effectively, said the U.S. space agency.

Thursday's spacewalk is the 203rd EVA devoted to station assembly and maintenance since construction began in 1998, the eighth so far this year, the third for Bresnik and the first for Vande Hei.

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