China rakes up Doklam again, cautions India against more such incidents

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.

AstraZeneca said on Tuesday it had initiated the worldwide withdrawal of its COVID-19 vaccine due to a "surplus of available updated vaccines" since the pandemic.

The company also said it would proceed to withdraw the vaccine Vaxzevria's marketing authorizations within Europe.

"As multiple, variant Covid-19 vaccines have since been developed there is a surplus of available updated vaccines," the company said, adding that this had led to a decline in demand for Vaxzevria, which is no longer being manufactured or supplied.

According to media reports, the Anglo-Swedish drugmaker has previously admitted in court documents that the vaccine causes side-effects such as blood clots and low blood platelet counts.

The firm's application to withdraw the vaccine was made on March 5 and came into effect on May 7, according to the Telegraph, which first reported the development.

London-listed AstraZeneca began moving into respiratory syncytial virus vaccines and obesity drugs through several deals last year after a slowdown in growth as COVID-19 medicine sales declined.

London: London's Labour mayor Sadiq Khan on Saturday secured a record third term, as the party swept a host of mayoral races and local elections to trounce the ruling Conservatives just months before an expected general election.

Khan, 53, beat Tory challenger Susan Hall by 11 points to scupper largely forlorn Tory hopes that they could prise the UK capital away from Labour for the first time since 2016.

The first Muslim mayor of a Western capital when initially elected then, he had been widely expected to win as the opposition party surges nationally and the Tories struggle to revive their fortunes.

Hours later in the West Midlands, Conservative mayor Andy Street -- bidding for his own third term -- unexpectedly lost to Labour's Richard Parker, dealing a hammer blow to Prime Minister Rishi Sunak.

That narrow loss left the beleaguered leader with only one notable success in Thursday's votes across England, after Tory mayor Ben Houchen won in Tees Valley, northeast England -- albeit with a vastly reduced majority.

In a dismal set of results, Sunak's party finished a humiliating third in local council tallies after losing nearly 500 seats.

"People across the country have had enough of Conservative chaos and decline and voted for change with Labour," its leader Keir Starmer said shortly after confirmation of Parker's victory.

He called the result "phenomenal" and "beyond our expectations".

Writing earlier in Saturday's Daily Telegraph, Sunak had conceded "voters are frustrated" but tried to argue Labour was "not winning in places they admit they need for a majority".

"We Conservatives have everything to fight for," Sunak insisted.

'Spirit and values'

Labour, out of power since 2010 and trounced by Boris Johnson's Conservatives at the last general election in 2019, also emphatically snatched a parliamentary seat from the Tories.

Starmer has seized on winning the Blackpool South constituency and other successes to demand a general election.

Sunak must order a national vote be held by January 28 next year at the latest, and has said he is planning on a poll in the second half of 2024.

Labour has enjoyed double-digit poll leads for all of his 18 months in charge, as previous Tory scandals, a cost-of-living crisis and various other issues dent his party's standing.
On Thursday, it was defending nearly 1,000 council seats, many secured in 2021 when it led nationwide polls before the implosion of Johnson's premiership and his successor Liz Truss's disastrous 49-day tenure.

In the end, they lost close to half and finished third behind the smaller centrist opposition Liberal Democrats.

Meanwhile Labour swept crunch mayoral races across England, from Yorkshire, Manchester and Liverpool in the north to contests across the Midlands.

In London, Khan netted 44 percent of the vote and saw his margin of victory increase compared to the last contest in 2021.

"It's truly an honour to be re-elected for a third term," he told supporters, accusing his Tory opponent of "fearmongering".

"We ran a campaign that was in keeping with the spirit and values of this great city, a city that regards our diversity not as a weakness, but as an almighty strength -- and one that rejects right hard-wing populism," he added.

'Change course'

If replicated in a nationwide contest, the council tallies suggested Labour would win 34 percent of the vote, with the Tories trailing by nine points, according to the BBC.

Sky News' projection for a general election using the results predicted Labour will be the largest party but short of an overall majority.

Speculation has been rife in Westminster that restive Tory lawmakers could use dire local election results to try to replace Sunak.

Despite the returns being at the worst end of estimates, that prospect has not so far materialised.

Ex-interior minister and Sunak critic Suella Braverman warned in the Sunday Telegraph that Sunak's plan "is not working and he needs to change course", urging a more muscular conservatism.

But she cautioned against trying to replace him, warning "changing leader now won't work: the time to do so came and went".

Meanwhile, polling expert John Curtice assessed there were some concerning signs for Labour, which lost control of one local authority and some councillors elsewhere reportedly over its stance on the Israel-Hamas war.

"These were more elections in which the impetus to defeat the Conservatives was greater than the level of enthusiasm for Labour," Curtice noted in the i newspaper.

"Electorally, it is still far from clear that Sir Keir Starmer is the heir to (Tony) Blair."