Fyodor Yurchikhin and Mikhail Kornienko spent almost 7 hours outside the orbiting facility replacing a broken camera and installing cables on a Russian module to help outfit it as a new docking port, SPACE.com reported.

At one point, an object was observed spinning away from where they were working.

"What is it?" one cosmonaut asked in Russian.

"It looks like it's a handle or an attachment fixture -- yes, it's an attachment fixture," the other cosmonaut replied, according to an English translation.

About an hour later, another object, thought to be a washer, accidentally floated off into space.

Neither object proved to be necessary to complete the intended modifications to the ISS and the spacewalk was successfully completed, SPACE.com reported.

The first item lost, at least, shouldn't pose a risk to the station, NASA commentator Brandi Dean said.

"It does seem to have floated below the space station and it should not pose any problem for the space station as far as posing a debris threat," Dean said.

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