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Lightning strikes will more than double in Arctic as climate warms


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Irvine, Calif. In 2019, the National Weather Service in Alaska reported spotting the first-known lightning strikes within 300 miles of the North Pole. Lightning strikes are almost unheard of above the Arctic Circle, but scientists led by researchers at the University of California, Irvine have published new research in the journal
Nature Climate Change detailing how Arctic lightning strikes stand to increase by about 100 percent over northern lands by the end of the century as the climate continues warming.
We projected how lightning in high-latitude boreal forests and Arctic tundra regions will change across North America and Eurasia, said Yang Chen, a research scientist in the UCI Department of Earth System Science who led the new work. The size of the lightning response surprised us because expected changes at mid-latitudes are much smaller. ....

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Scientists discover X-rays coming from Uranus


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Uranus is the seventh planet from the sun
(Lawrence Sromovsky, University of Wisconsin-Madison/WW Keck Observatory)
Astronomers have detected X-rays from Uranus for the first time, in findings that could help them learn more about the seventh planet from the sun.
In a study published by the
Journal of Geophysical Research on Wednesday, scientists from the UK, France, America and China said they had detected X-rays emitted by the planet thanks to visuals taken by NASA’s Chandra X-ray Observatory, a space telescope.
They studied observations taken in 2002 and 2017 by the Chandra observatory, detecting X-rays in the first observation and a flare of X-rays in those taken 15 years later, NASA said. ....

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