The National Oceanic and Atmospheric Administration (NOAA)'s Space Weather Prediction Center (SWPC) said that an extreme (G5) solar storm since 2003 reached Earth leading to spectacular celestial light shows in skies from Tasmania to Britain.
In a post on X, NOAA SWPC added, “Extreme (G5) conditions reached Earth at 6.54 pm EDT. Geomagnetic storming is likely to persist through the weekend as several additional earth-directed coronal mass ejections (CME) are in transit.”
Speaking of its impact, it added that, “HF/VHF/UHF communications, GPS, power grids, spacecraft, satellite navigation and other technologies may be affected. Critical infrastructure operators have been notified.”
The Storm was earlier predicted as a severe geomagnetic storm, however, was later upgraded to an "extreme" geomagnetic storm, the first since the "Halloween Storms" of October 2003 which had caused blackouts in Sweden and damaged power infrastructure in South Africa. It is important to note that unlike solar flares, which travel at the speed of light and reach Earth in around eight minutes, CMEs travel at a more sedate pace, with officials putting the current average at 800 kilometers (500 miles) per second.
Social media is lit up with people posting pictures of auroras from Belgium, Switzerland, Germany, Alabama and also Dnipro city in Ukraine. While speaking to AFP, Iain Mansfield, a think tanker in Hertford, Britain, said, “We've just woken the kids to go watch the Northern Lights in the back garden! Clearly visible with the naked eye”
"Absolutely biblical skies in Tasmania at 4am this morning. I'm leaving today and knew I could not pass up this opportunity," photographer Sean O' Riordan who shared a post on X said.
Meanwhile, fluctuating magnetic fields associated with geomagnetic storms induce currents in long wires, including power lines, which can potentially lead to blackouts. Long pipelines can also become electrified, leading to engineering problems.
Spacecraft are also at risk from high doses of radiation, though the atmosphere prevents this from reaching Earth. NASA has a dedicated team looking into astronaut safety, and can ask astronauts on the International Space Station to move to places within the outpost that are better shielded.
(With inputs from AFP)
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