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Spacewalking Astronauts Upgrade Orbiting Lab's Power Grid

Astronauts took another spacewalk Friday to plug in new and better batteries outside the International Space Station. It's the same type of job that was conducted last Friday 250 miles above Earth. Commander Shane Kimbrough was back at it, but this time he was joined by French astronaut Thomas Pesquet. Their main objective was to wire up three lithium-ion batteries, the latest in space tech. That's on top of three connected last week. Just like before, the station's...

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