Published: Вс, Марта 24, 2019
Sci-tech | By April Francis

U.S. Astronauts Take Multi-Hour Spacewalk to Replace Batteries on ISS

U.S. Astronauts Take Multi-Hour Spacewalk to Replace Batteries on ISS

This will mark the first all-female spacewalk, a historic event.

"Over the life of station, we knew this was going to happen, we knew the batteries were going to have to be replaced, so we started a year ago on the starboard side". The new batteries are much more efficient, meaning only one will be needed to replace two of the old batteries, and they will give power storage capacity a boost.

The International Space Station will darken behind the Earth's shadow just before reaching the horizon.

NASA said this spacewalk, the first of three, is part of an overall upgrade of the International Space Station's power system.

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This battery swap operation still has a long way to go, though. Both spacewalks will be livestreamed on NASA's website. That means NASA will still have half the process left after this month.

NASA has already done a lot of work robotically to prepare for today's spacewalk.

Two rookie spacewalkers took on a battery replacement project on the International Space Station that will continue next week with history's first all-female spacewalk. The station's robotic arm maneuvered some of the batteries around to make it easier for McClain and Hague to complete the installation. McClain and Hague will replace nickel-hydrogen batteries with newer, more powerful lithium-ion batteries for the power channel on one pair of the station's solar arrays.

McClain and Koch's assignment is partly the result of chance - the batteries originally were to be installed last fall but the work was delayed by a variety of issues - and a desire by NASA management to give more of the agency's astronauts spacewalk experience. End your work week by watching astronauts doing their work in the vacuum of space.

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