SCIENCE
NASA’s GOLD mission just revealed bizarre X-shaped plasma structures in Earth’s ionosphere.
By Aniket Chakraborty
June 7, 2025
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These plasma Xs appeared during calm solar conditions—defying decades of scientific thought.
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Scientists had only ever seen such shapes during geomagnetic storms caused by solar activity.
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But now, GOLD’s ultraviolet camera spotted them even when the Sun was quiet.
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The plasma lanes, usually parallel, were seen merging and twisting into Xs unexpectedly.
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NASA simulations show winds and atmospheric waves could be causing these nighttime distortions.
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It turns out—weather patterns on Earth might reach high enough to warp our upper atmosphere.
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These short-lived Xs can disrupt satellite communication, GPS signals, and precision systems.
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Scientists warn current space weather models may be too solar-focused to predict such events.
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The discovery challenges our understanding of Earth’s skies—and what lies just above.
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