File:NASA’s Webb “Powerhouse” Solar Array Reconnects to the Telescope.jpg
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[edit]DescriptionNASA’s Webb “Powerhouse” Solar Array Reconnects to the Telescope.jpg |
English: One kilowatt is about what it takes to heat up some leftovers in a microwave — or to power the largest and most technically advanced telescope ever built. Thanks to its solar array, NASA’s James Webb Space Telescope will stay energy-efficient more than 1 million miles (1.5 million kilometers) from Earth.
Webb’s 20-foot (6-meter) solar array was recently attached to the main observatory for the final time before launch. The “powerhouse” of the telescope, the array will supply energy to all of the telescope’s scientific instruments and communication and propulsion systems. While Webb will only use 1 kilowatt of power, the solar array is capable of generating nearly double that amount to factor in the gradual wear and tear of a harsh space environment. The solar array is made up of five panels that are hinged together to easily fold up and stow in Webb’s launch vehicle, the Ariane 5 rocket. When Webb launches in 2021, this deployment will be the first and one of the most critical steps in the observatory’s full deployment process. The telescope’s onboard battery is intended to last only a few hours, up until the solar array unfolds in space and begins converting sunlight into electricity. In spring 2019, the array was removed from the spacecraft for deployment testing. To minimize friction and mimic the zero-gravity conditions of deep space, the team conducted tests by hanging the array on its side. Text Credit: Isabelle Yan Image Credit: NASA/Chris Gunn |
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Source | https://www.flickr.com/photos/50785054@N03/50275630947/ | |||||||||||
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James Webb Space Telescope
creator QS:P170,Q110278636 |
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This image was originally posted to Flickr by James Webb Space Telescope at https://flickr.com/photos/50785054@N03/50275630947. It was reviewed on 4 October 2021 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
4 October 2021
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