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NASA Astronauts Returned To The ISS After A Spacewalk

NASA Astronauts Returned To The ISS After A Spacewalk

American astronauts Chris Cassidy and Bob Behnken successfully completed a spacewalk from the International Space Station (ISS) on Friday after working to modernize its power system, NASA said.

The launch of the astronauts into the space vacuum began at 07:32 on the East coast of the United States. Approximately six hours later, they returned to the Quest gateway of the American segment of the ISS.

While working on the outside of the station, Cassidy and Behnken successfully dismantled five outdated Nickel-hydrogen batteries that stored and distributed energy collected from solar panels and installed two more powerful lithium-ion batteries instead of the support segment S6 of the ISS truss, to which a pair of solar panels are attached.

At the same time, the astronauts exceeded the work plan by removing two additional old batteries, which were planned to be dismantled during the subsequent spacewalk on July 1. According to NASA, during it, the astronauts will have to install another new lithium-ion battery on the outside of the station.

Work on upgrading the power system on the right side of the station's farm began last year and continued in January.

In General, the upgrade of the power supply system of the station began in January 2017. Complex repairs were carried out on both the right and left sides of the truss structure of the station.

The new batteries were delivered to the ISS in may by a Japanese HTV cargo ship.

Currently, Russian cosmonauts Anatoly Ivanishin and Ivan Wagner and American astronauts Chris Cassidy, Douglas Hurley, and Robert Behnken are working on Board the ISS.