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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.”

Crime

Dubai Police issue urgent warning: Secure your devices now

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Dubai Police have issued a fresh reminder to residents to strengthen the security of home surveillance systems and internet-connected devices, warning that weak settings can leave users vulnerable to hacking, privacy breaches, and even cyber extortion.

The alert comes as part of ongoing awareness campaigns led by the General Department of Criminal Investigation, represented by the Cybercrime and Electronic Crime Department. Authorities noted that many cyberattacks exploit devices with default or weak configurations, making them easy targets.

Residents are advised to take simple but vital steps:

  • •Change default passwords immediately after activating any device.
  • •Use strong, complex passwords with letters, numbers, and symbols.
  • •Regularly update operating systems and apps to patch security gaps.
  • •Avoid sharing personal details or passwords with unverified sources.
  • •Switch off surveillance systems when not in use, especially in private spaces.
  • •Stay alert to suspicious links or apps from unreliable platforms.

Dubai Police emphasised that awareness remains the first line of defence against cybercrime. To support the public, residents can access advice through the e-Crime Hub and report incidents via official channels or by calling 901 for non-emergency cases.

Authorities reiterated that community cooperation is key to reducing cybercrime and protecting individuals, families, and property in the digital age.

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UAE

UAE prioritises citizen safety with new travel restrictions

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The Ministry of Foreign Affairs (MoFA) has announced a temporary travel ban for UAE nationals to Iran, Lebanon, and Iraq.

In its statement, the Ministry emphasised that the move comes as part of precautionary measures to safeguard the well-being of Emiratis abroad. UAE nationals currently in these countries are urged to expedite their return home and to strictly follow official advisories.

MoFA also highlighted its commitment to monitoring the safety of citizens overseas, calling on those in Iran, Lebanon, and Iraq to contact the Ministry directly at +97180044444 for assistance.

This latest advisory underscores the UAE’s proactive approach to ensuring the security and welfare of its people during times of heightened regional uncertainty.

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News

Dh400 fine for jaywalking in Dubai: What residents must know

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Pedestrians in Dubai are being urged to follow road safety rules, as Dubai Police warns that crossing from non-designated areas remains a leading cause of run-over accidents.

Officials say that despite the availability of pedestrian bridges and safe crossings across major roads, some individuals continue to take risks, especially on high-speed routes where drivers may not be able to stop in time.

The warning follows a recent incident where a pedestrian was injured after attempting to cross from an unsafe location in the city. The individual sustained minor injuries.

According to Brigadier Jumaa Salem Bin Suwaidan, pedestrians who ignore crossing rules not only risk their own safety but also endanger drivers and other road users.

Under UAE traffic laws, crossing outside designated areas or ignoring signals can result in a Dh400 fine, reinforcing the importance of using marked crossings and following traffic lights.

Residents have been urged to use designated crossings and stay alert, particularly on busy roads. With increasing traffic and high vehicle speeds in many areas, even a short shortcut can carry serious risks.

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