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Washington, May 11: The most powerful solar storm in more than two decades struck Earth on Friday, triggering spectacular celestial light shows from Tasmania to Britain -- and threatening possible disruptions to satellites and power grids as it persists into the weekend.

The first of several coronal mass ejections (CMEs) -- expulsions of plasma and magnetic fields from the Sun -- came just after 1600 GMT, according to the National Oceanic and Atmospheric Administration (NOAA)'s Space Weather Prediction Center.

It was later upgraded to an "extreme" geomagnetic storm -- the first since the "Halloween Storms" of October 2003 caused blackouts in Sweden and damaged power infrastructure in South Africa. More CMEs are expected to pummel the planet in the coming days.

Social media lit up with people posting pictures of auroras from northern Europe and Australasia.

"We've just woken the kids to go watch the Northern Lights in the back garden! Clearly visible with the naked eye," Iain Mansfield in Hertford, England, told AFP.

That sense of wonder was shared in Australia's island state of Tasmania.

"Absolutely biblical skies in Tasmania at 4 am this morning. I'm leaving today and knew I could not pass up this opportunity," photographer Sean O' Riordan posted on social media platform X alongside a photo.

Authorities notified satellite operators, airlines, and the power grid to take precautionary steps for potential disruptions caused by changes to Earth's magnetic field.

Elon Musk, whose Starlink satellite internet operator has some 5,000 satellites in low Earth orbit, described the solar storm as the "biggest in a long time."

"Starlink satellites are under a lot of pressure, but holding up so far," Musk posted on his X platform.

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.

The CMEs emanated from a massive sunspot cluster that is 17 times wider than our planet. The Sun is approaching the peak of an 11-year cycle that brings heightened activity.

'Go outside tonight and look'

Mathew Owens, a professor of space physics at the University of Reading, told AFP that how far the effects would be felt over the planet's northern and southern latitudes would depend on the storm's final strength.

"Go outside tonight and look would be my advice because if you see the aurora, it's quite a spectacular thing," he said. People with eclipse glasses can also look for the sunspot cluster during the day.

In the United States, this could include places such as Northern California and Alabama, officials said.

NOAA's Brent Gordon encouraged the public to try to capture the night sky with phone cameras even if they couldn't see auroras with their naked eyes.

"Just go out your back door and take a picture with the newer cell phones and you'd be amazed at what you see in that picture versus what you see with your eyes."

Spacecraft and pigeons

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, although 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.

Following one particularly strong flare peak, the US Space Weather Prediction Center said users of high-frequency radio signals "may experience temporary degradation or complete loss of signal on much of the sunlit side of Earth."

Even pigeons and other species that have internal biological compasses could also be affected. Pigeon handlers have noted a reduction in birds coming home during geomagnetic storms, according to NASA's Jet Propulsion Laboratory.

Officials said people should have the normal backup plans in place for power outages, such as having flashlights, batteries, and radios at hand.

The most powerful geomagnetic storm in recorded history, known as the Carrington Event after British astronomer Richard Carrington, occurred in September 1859.

Madikeri, May 11: Kodagu police have apprehended the man allegedly responsible for the brutal murder of a minor girl within the confines of Kumbaragadige village in Karnataka's Somwarpet taluk. 

Kodagu Superintendent of Police, K Ramarajan, disclosed that the arrested individual is Prakash (32) from Hammiyala village in Somwarpet taluk. However, authorities are still in the process of recovering the severed head of the victim. The perpetrator had absconded with the victim's severed head after committing the crime. 

Search operations for the suspect commenced late on Thursday night (May 9), with officials diligently pursuing leads. Acting on information suggesting the suspect's presence in a forested area near the village, the police swiftly moved in and apprehended him.

The victim US Meena, 15, a student of Surlabbi High School, had passed the SSLC examinations, the results of which were announced on May. One same day, she was murdered. 

Reportedly, the engagement of the minor girl with the suspect was thwarted by officials from the Women and Child Development department. Subsequently, officials persuaded the girl's parents against proceeding with the marriage. 

However, despite these interventions, the suspect forcibly entered her residence during the night, purportedly abducted her, and later perpetrated the heinous crime in a wooded area on the outskirts of the forest, before absconding with her severed head.

In a fresh claim, arrested BJP leader and advocate G Devaraje Gowda has alleged that Deputy Chief Minister D K Shivakumar and four other ministers were behind exposing Prajwal Revanna’s sex scam that has brought disgrace to Janata Dal (Secular) H D Deve Gowda family. 

Devaraje Gowda has been arrested in a sexual abuse case. 

Speaking to reporters while being taken to the district prisons, in Hassan on Friday, Gowda alleged that he was offered Rs 100 crore to drag the name of H D Kumaraswamy in the Prajwal’s case. 

“D K Shivakumar had offered me Rs 100 crore to project that H D Kumaraswamy was behind the case. The offer was made through ministers N Chaluvarayaswamy, Krishna Byre Gowda, Priyank Kharge and another minister. They had even sent Rs 5 crore as advance to Bowring Club. But I did not agree. Hence, they hatched a plot to trap me,” Gowda alleged.

“It is D K Shivakumar, who collected all information from Prajwal Revanna’s former car driver Karthik and readied the pen drive. A team of four ministers were formed to handle the issue. As I did not agree to the plan. They planned to bring disrepute to the BJP, Narendra Modi and H D Kumaraswamy,” he said.

Gowda further alleged that former MLC M A Gopalaswamy of Channarayapatna was sent to him for negotiation.

“The main intention of D K Shivakumar is to bring disrepute to Modi and BJP in the case. Besides, he wanted to defame H D Kumaraswamy’s leadership in the state” he claimed. “They filed a sexual harassment and rape case against me, but found no evidence. Now, they are trying to fix me in the pen drive case” he alleged.