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    Northern Lights Set to Return Tonight as Extreme Solar Storm Continues

    Electrical utilities said they weathered earlier conditions as persistent geomagnetic storms were expected to cause another light show in evening skies.Night skies in many parts of the Northern Hemisphere are expected to bloom again on Saturday night with the vivid colors of the northern lights, or aurora borealis, as a powerful geomagnetic storm caused by a hyperactive sun persists through the weekend.The National Oceanic and Atmospheric Administration, which monitors space weather, said in an update on Saturday that it continued to observe solar activity that could lead to periods of “severe-extreme” geomagnetic storms. The federal agency first issued a warning on Friday as bursts of material from the sun’s surface traveled into Earth’s atmosphere, causing irregularities in power, navigation and communication systems.Major power utilities had largely prepared their electrical grids for the solar storm, and their customers were unaffected.For most people, the solar storm was a gift: It caused ribbons of pink, purple and green light across night skies of much of the United States, Canada and Europe. Where evening skies are clear on Saturday, the lights can be expected again.Known as aurora, the light is caused by particles from the sun interacting with gases in Earth’s atmosphere, and is usually only observed at latitudes closer to the North or South Pole. But on Friday night, residents of lower latitudes, including those in North Carolina and Arizona, saw the dancing lights.Jane Wong, 30, of San Francisco, drove to the Presidio overlooking the Golden Gate Bridge where conditions started out foggy. But at midnight, her wait paid off as the sky started to clear.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More

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    A Solar Storm Lights Up the Night Sky

    People in Britain marveled at the unusual and spectacular sight of the northern lights on Friday night, the consequence of a severe solar storm that was brewing and was expected to continue over the coming days.The northern lights — also known as aurora borealis — usually don’t reach this far south. They are most often seen in higher latitudes closer to the North Pole. People in other European countries, including Denmark and Germany, also reported seeing the lights.Onlookers marveled at the sight, posting their surprise, delight and sometimes shock on social media. As one user wrote: “Aurora Borealis? At this time of year? At this time of day? In this part of the country? Localized entirely over Edinburgh?”Another onlooker posted, “It really is gorgeous though.”The northern lights also made appearances in North America, with some people reporting sightings in Maine on Friday night. They occur when the sun expels material from its surface.The current solar storm is caused by a cluster of sunspots — dark, cool regions on the solar surface. The cluster is flaring and ejecting material every six to 12 hours.Earlier Friday, the National Oceanic and Atmospheric Administration’s Space Weather Prediction Center issued a rare warning about the solar outburst, because it could disrupt communications and even power grids.Adam Vaughan/EPA, via ShutterstockThe lights were visible in Britain, in locations including Crosby Beach near Liverpool, where they could be seen behind Antony Gormley’s “Another Place” sculpture.Owen Humphreys/PA Images, via Getty ImagesThe northern lights cast a glow on a lighthouse in Whitley Bay, England.Patrick Pleul/picture alliance, via Getty ImagesThe northern lights glowing in the sky in the Oder-Spree district in Brandenburg State, Germany. More