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NYU Abu Dhabi researchers find mysterious new set of waves in Sun

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Researchers from NYU Abu Dhabi’s (NYUAD) Centre for Space Science have discovered a new set of waves in the Sun that, unexpectedly, appear to travel much faster than predicted by theory.

In the study, ‘Discovery of high-frequency-retrograde vorticity waves in the Sun’, published in the journal Nature Astronomy, the researchers, led by Research Associate Chris S. Hanson, detailed how they analysed 25 years of space and ground-based data to detect these waves. The high-frequency retrograde (HFR) waves, which move in the opposite direction of the Sun’s rotation, appear as a pattern of vortices (swirling motions) on the surface of the Sun and move at three times the speed established by current theory.

The interior of the Sun and stars cannot be imaged by conventional astronomy (e.g. optical, x-ray etc.), and scientists rely on interpreting the surface signatures of a variety of waves to image the interiors. These new HFR waves may yet be an important puzzle piece in our understanding of stars.

Complex interactions between other well known waves and magnetism, gravity or convection could drive the HFR waves at this speed. “If the HFR waves could be attributed to any of these three processes, then the finding would have answered some open questions we still have about the Sun,” said Hanson. “However, these new waves don’t appear to be a result of these processes, and that’s exciting because it leads to a whole new set of questions.”

This research was conducted within NYUAD’s Centre for Space Science in collaboration with the Tata Institute of Fundamental Research (TIFR) and New York University, using NYUAD and TIFR’s computational resources. By studying the Sun’s interior dynamics – through the use of waves – scientists can better appreciate the Sun’s potential impact on the Earth and other planets in our solar system.

“The very existence of HFR modes and their origin is a true mystery and may allude to exciting physics at play,” said Shravan Hanasoge, a co-author of the paper. “It has the potential to shed insight on the otherwise unobservable interior of the Sun.”

Health

Attention Dubai-Sharjah motorists: Daily traffic may be damaging your knees, doctor warns

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For thousands of UAE residents, the slow crawl between Dubai and Sharjah is more than a test of patience, it may be quietly hurting their health. Medical experts are now warning that those long, motionless minutes behind the wheel could be taking a serious toll on commuters’ knees.

According to leading knee specialist Dr Azam Badar Khan, popularly known as Dr Knee, early knee pain and stiffness are becoming increasingly common among regular drivers stuck in daily congestion. What should ideally be a quick 30-minute trip often becomes a marathon commute well over an hour, and that prolonged immobility comes with consequences.

“Keeping your knees locked in one position for too long compresses the joint,” Dr Khan explains. 

“Over time, this leads to pain, swelling, and early degeneration, and we’re seeing this now even in people as young as 35.”

The routine grind between Dubai, Sharjah, and the Northern Emirates places constant, repetitive strain on drivers: accelerator–brake movements, limited opportunities to stretch, and steady pressure on the knee joint from sitting too long. 

Dr Khan says more than 40 per cent of his patients are between 30 and 50 years old, many of whom spend one to two hours a day in their cars. Over time, these long periods of inactivity weaken the quadriceps, the key muscle supporting the knee, making joints more vulnerable to injury and chronic discomfort.

But it’s not all bad news. Dr Knee stresses that a few simple adjustments can make a surprisingly big difference. Ensuring your seat is positioned so your knees don’t sit higher than your hips, avoiding overextension while driving, and taking quick “micro-breaks” to flex or gently stretch the legs can help restore circulation and reduce pressure. Strengthening the supporting muscles with just a few minutes of daily exercise also provides vital protection, while maintaining a healthy weight helps reduce unnecessary strain.

And there’s one post-commute habit Dr Khan wants drivers to ditch immediately: sitting cross-legged at home. After hours of knee compression in traffic, he says, this position only worsens stiffness and slows recovery.

“Traffic may be part of life here, but knee damage doesn’t have to be,” Dr Khan says.

Through his initiative, Let’s Walk Again with Dr Knee, he continues to push for early awareness and intervention. Upcoming knee-health camps and free check-ups across Dubai aim to help residents spot warning signs sooner, long before everyday activities become difficult.

“Prevention is always better than cure,” he adds. 

“Don’t wait for the pain to take over.”


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Business

UAE warns public as two unlicensed investment firms flagged by regulator

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The UAE’s Securities and Commodities Authority (SCA) has issued a fresh investor alert, warning the public about two companies operating without the required licences.

In a statement on Friday, December 12, the authority identified XC Market Limited and XCE Commercial Brokers LLC as unlicensed entities, noting that both firms are conducting financial activities without SCA approval.

The regulator stressed that the companies are not authorised to carry out regulated investment services or offer any related financial products in the UAE. It also clarified that it bears no responsibility for any transactions conducted with the firms.

The warning follows a series of recent alerts as part of the SCA’s ongoing push to combat fraudulent operators. Earlier this month, the authority cautioned investors about Global Capital Securities Trading, which was posing as a licensed trading firm. On December 3, it also flagged an entity calling itself the Gulf Higher Authority for Financial Conduct, which was found using a misleading website and falsely claiming regulatory status.

The SCA reiterated that investors should verify the licensing status of any company before engaging in financial dealings, as the regulator continues monitoring for unlicensed operators and cloned platforms targeting the UAE market.


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News

UAE announces January 1, 2026, as official New Year holiday for private sector

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Private-sector employees across the UAE will enjoy a long weekend to ring in 2026, with the Ministry of Human Resources and Emiratisation (MoHRE) confirming that Thursday, 1 January 2026, will be an official paid holiday.

The announcement comes in line with the UAE Cabinet’s approved list of public holidays for both government and private-sector workers.

Since New Year’s Day falls on a Thursday, private-sector offices will resume work on Friday, January 2, 2026.

Public sector schedule

The Federal Authority for Government Human Resources has also confirmed the holiday for federal government employees. Federal ministries and entities will be closed on Thursday, with Friday, January 2, 2026, designated as a remote-work day, except for roles that require on-site presence.

Sharjah authorities have also announced the New Year holiday in line with the national schedule.

The unified holiday ensures residents across the UAE can welcome the new year with a mid-week break and extended family time.

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