Spacewalkers set the stage for future ISS additions

Spacewalkers set the stage for future ISS additions

NASA astronauts Chris Cassidy and Bob Behnken completed their fourth spacewalk in less than a month to upgrade the International Space Station, setting the stage for future additions to the 20-year-old outpost.

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Astronauts complete 2 battery-replacement spacewalks

Astronauts complete 2 battery-replacement spacewalks

One of the main reasons the Demo-2 crew — NASA’s Doug Hurley and Bob Behnken — is staying aboard the International Space Station for so long is so they can help the Expedition 63 crew, commanded by NASA astronaut Chris Cassidy, with various tasks aboard the outpost, including the final test of battery upgrades on the external truss.

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