Spacewalking astronauts swap out space station's batteries - lithium ion batteries for sale
On Friday, two space walkers made some harsh noises and complicated moves as they replaced their batteries in orbit.
But in the end, it's almost as smooth as doing housework on Earth.
NASA's Anne MacLean and Nick Hague replaced three old nickel in six hours and 39 minutes.
More powerful lithium battery-
Ion batteries on the International Space Station.
They struggled with a stubborn bolt on the last panel, but eventually took the battery device out and installed it.
Despite the difficulties, the astronauts did the job faster than NASA planned, so MacLean had the opportunity to do some unusual space station cleaning.
She took a scraper wrapped in tape and picked up some tiny pieces of space attached to a part of the space station.
Must remind rookie space walkers to enjoy the beauty from 250 miles high.
Towards the end of the space walk, mission control center astronaut Thomas peisquette told McLean: "There is Earth behind you. ”“I noticed.
Beautiful, "said MacLean.
While the space men were taking off their space suits, they got a surprise message from the wife Air Force lieutenant in the HagueCol.
Katie Hague: "You're done. Awesome job.
Talk to you later. Love you.
"The robot arm of the space station did a lot of heavy work before, but the astronauts still have to drag something weighing 300 --
Pound block size of big coffee table, reconnect battery wiring.
20-there are more alternativesyear-
The original battery of the old station came.
NASA has replaced about half of 48 batteries with batteries that are expected to last the remaining life of the space station.
The space station uses solar panels to generate electricity, but the batteries are used when they cannot get power from the sun in the dark.
Friday's spacewalk is the first of three planned trips to replace batteries and perform other maintenance.
The space walk next week will first include
Female crew including McLean
This is the 214 spacewalk to assemble and maintain the space station. ——
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