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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.”

News

UAE mosques to deliver Friday sermon on national security, loyalty and vigilance

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The General Authority of Islamic Affairs, Endowments and Zakat has announced that the upcoming Friday sermon in the UAE will urge worshippers to uphold national loyalty and report activities that may threaten security, while warning against actions that undermine national unity.

Delivered under the title “Whoever betrays our nation is not one of us”, the sermon will emphasise that honesty and trust are core Islamic values, describing betrayal as a grave sin.

Worshippers, particularly youth, will be urged to remain vigilant and not be misled by narratives. The message will stress unity, adherence to authentic teachings, and respect for the country’s laws and leadership.

It will also highlight the role of security services in safeguarding stability and urge individuals to report suspicious behaviour through official channels, noting that concealing wrongdoing is itself a serious offence.

The sermon will pay tribute to the UAE Armed Forces ahead of their unification anniversary on May 6, and conclude with prayers for the nation’s safety, leadership and continued prosperity.


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Business

AI Is taking over half of UAE government services: What you need to know

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The UAE will transition 50 per cent of its government services, operations and sectors to autonomous artificial intelligence systems within the next two years, under directives issued by President Sheikh Mohamed bin Zayed Al Nahyan.

The major shift was announced on Thursday by Sheikh Mohammed bin Rashid Al Maktoum, Vice President and Prime Minister of the UAE and Ruler of Dubai, who said the country would move half of its government services to AI-driven systems as part of a new governance model.

Describing the initiative as a next-generation government system, Sheikh Mohammed said the UAE aims to become the first country in the world to adopt ‘agentic AI’ models capable of independently executing tasks, managing processes and supporting decision-making without direct human intervention.

He noted that advanced AI technologies are now able to monitor changes, analyse data, provide recommendations and carry out sequences of actions autonomously, adding that such systems would function as an executive partner to government entities. The move is expected to enhance efficiency, improve service delivery and enable real-time evaluation and optimisation across public sector operations.

Sheikh Mohammed also said that ministers, directors-general and federal entities would be assessed over the next two years based on how effectively they keep pace with the transformation, including the speed at which they adopt AI tools and implement new operational standards.

As part of the initiative, all federal government employees will undergo specialised training in artificial intelligence to build the capabilities required to support what has been described as one of the largest government transformation projects globally.

How AI shift could affect daily life

  • Applications, approvals, and renewals could be processed much quicker.
  • Expect fewer in-person visits and more services handled online.
  • AI systems don’t sleep, some services may become available 24/7.
  • Real-time tracking and instant status updates on requests.
  • Policies and services may improve based on data-driven insights.
  • Basic processes (like renewals or payments) could be fully automated.
  • Problems or delays in services may be identified and fixed sooner.
  • Increased reliance on digital systems may bring stronger data controls, but also higher awareness around privacy.

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Education

Dubai school remote learning: All you need to know about fees, refunds

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Parents in Dubai may still have to pay full school fees, even if their children are learning from home.

That’s the key takeaway from new guidelines issued by the Knowledge and Human Development Authority (KHDA), which clarify how tuition fees and refunds work in private schools.

No discounts for online learning

Even when classes are delivered remotely, schools are not required to reduce or waive fees. If learning is available, online or in person, fees must be paid in full.

Skipping classes doesn’t stop fees

Thinking of opting out of distance learning? That won’t reduce your bill. Parents who choose not to participate must formally withdraw their child and settle all outstanding payments.

When can you get a refund?

Refunds are only possible if the school cannot provide education at all. If that happens, parents may receive a credit note for future fees, a transfer to a sibling’s account or a full refund.

Parents can raise concerns about online learning, but fees must still be paid while complaints are being reviewed.

Fees stop only in one case

Tuition fees continue as long as the school is offering classes. They stop only from the day education is no longer delivered.

Registrations still allowed

Schools can continue to accept registrations, collect deposits, and communicate with parents even during closures, using digital channels.

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