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This story was originally published by NASA and is unaltered.
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NASA’s Webb Investigates Eternal Sunrises, Sunsets on Distant World [1]

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Date: 2024-07

Using General Circulation Models, 3-dimensional models similar to the ones used to predict weather patterns on Earth, researchers found that on WASP-39 b the prevailing winds are likely moving from the night side across the morning terminator, around the dayside, across the evening terminator and then around the nightside. As a result, the morning side of the terminator is cooler than the evening side. In other words, the morning side gets slammed with winds of air that have been cooled on the nightside, while the evening is hit by winds of air heated on the dayside. Research suggests the wind speeds on WASP-39 b can reach thousands of miles an hour!

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[1] Url: https://science.nasa.gov/missions/webb/nasas-webb-investigates-eternal-sunrises-sunsets-on-distant-world/

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