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When solar storms shake the Earth’s magnetic field, these tremors create ground currents that flow into power lines and transformers, risking damage and outage. To keep infrastructure operators ready for these events, NOAA Space Weather Prediction Center provides real-time predictions and decision support directly to grid operators across most...

50,720 次观看 • 1 年前 •via X (Twitter)

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Understanding Tonight’s Solar Storm and What It Means A G5 is the top of the scale, the kind of solar storm powerful enough to light up the skies across half a continent and, in extreme cases, mess with the infrastructure that quietly runs our world. It’s not science fiction; it’s space weather, and it’s happened before. Back in 1989, a storm of this strength knocked out power to six million people in Quebec for nearly a day. Go further back to 1859, the famous Carrington Event and you get telegraph wires bursting into flames and aurora visible in the Caribbean. On that scale, tonight’s storm doesn’t look apocalyptic, but it’s still serious. Right now, the readings have hit what’s considered a G4 to borderline G5 level. That means the Earth’s magnetic field is being hit hard by a burst of solar plasma and what scientists call a coronal mass ejection. Essentially, the Sun hurled a cloud of charged particles at us, and when it collides with our magnetosphere, it compresses it like a drum. Those magnetic fluctuations induce currents that can run through anything long and conductive…power lines, pipelines, satellites, even the ground itself. That’s why space weather alerts always talk about power grids and communication systems. Modern infrastructure is built to handle volatility, but not cosmic scale volatility. Grid operators are already shifting load and monitoring for those geomagnetically induced currents that caused so much trouble in 1989. Satellite operators are doing the same…tweaking orbits, rotating hardware, reducing exposure. The idea is to ride it out rather than resist it. For the rest of us, the biggest impact is aesthetic, aurora could be visible much farther south than usual, maybe as far as the Gulf states if conditions hold. It’s one of those rare nights where a solar event becomes a cultural one. But it’s also a quiet reminder of how thin our technological skin really is. A strong enough storm can reach across space and touch systems that feel untouchable like our grids, GPS, communications, even financial networks. The storm is expected to peak overnight into November 12, and while it likely won’t reach the catastrophic intensity of 1859 or even 1989, it’s strong enough to make the world pause and look up. For a few hours, the same force that powers life on Earth, the Sun itself becomes unpredictable again. Right now it’s a light show. But it’s also a humbling one. Every now and then, the universe reminds us that we’re not in control of as much as we think, we’re just living inside the weather system of a star. 🎥 Here’s actor Dennis Quaid talking about what a worst case scenario could look like if a truly massive solar storm ever hit.

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40,832 次观看 • 8 个月前