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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.”

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Traffic disruption expected this weekend in Abu Dhabi

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Motorists in Abu Dhabi are being advised to expect delays this weekend after Abu Dhabi Mobility announced a partial closure on Arabian Gulf Street (E20).

According to officials, the closure affects the left lane heading towards Abu Dhabi and is part of ongoing traffic and infrastructure improvement works across the capital.

The temporary closure began at 12am on Friday, May 8, and will remain in effect until 5am on Monday, May 11.

Authorities have urged drivers to plan journeys ahead of time, allow for extra travel time and follow directional signs in the affected area to avoid congestion.

The latest traffic update comes as Abu Dhabi continues infrastructure upgrades aimed at improving traffic flow and road safety across key routes in the emirate.

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Abu Dhabi introduces new restrictions for delivery riders on highways

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Delivery riders in Abu Dhabi will soon face new road restrictions aimed at improving safety and easing traffic flow across key highways in the capital.

From May 15, authorities will ban delivery riders from using roads with speed limits of 120kph or higher, according to an announcement by Integrated Transport Centre, also known as Abu Dhabi Mobility.

The new rule also applies to a busy stretch of Sheikh Zayed Street between Sheikh Zayed Bridge and Sheikh Zayed Tunnel.

Officials said the move is designed to enhance road safety and improve traffic movement on some of the emirate’s most heavily used routes.

The decision follows similar measures introduced in Dubai last year, where delivery riders were restricted from using fast lanes on major highways.

Under Dubai’s rules, riders are not allowed to use the two leftmost lanes on roads with five lanes or more. On roads with three or four lanes, the leftmost lane is also off limits.

Authorities across the UAE have increasingly focused on delivery rider safety as the sector continues to grow rapidly alongside demand for food delivery and e-commerce services.

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Business

New DP World insurance protects cargo from conflict-related disruptions

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DP World has launched a first-of-its-kind cargo war risk insurance solution designed to help businesses navigate growing disruption across Middle East trade routes.

The new offering aims to solve a major challenge facing global shippers, as traditional war risk insurance has become increasingly expensive, fragmented and, in some cases, difficult to access amid ongoing regional tensions.

Unlike conventional policies that typically cover only one stage of a shipment’s journey, DP World’s solution provides continuous protection across the full supply chain, from ocean or air transit to port storage and inland delivery.

Coverage across the full journey

The insurance covers physical loss or damage caused by war-related risks, including conflict, civil unrest, seizure and derelict weapons. Valid claims will be settled with zero deductible, according to the company.

“This is about solving a real, immediate problem for global trade,” said Yuvraj Narayan, Group CEO of DP World.

“Supply chains don’t stop at the port or the shoreline, and neither should insurance.”

Key trade routes included

The programme is available to companies trading in or through the Middle East. It is designed to support supply chain continuity across major trade corridors, including the Arabian Gulf, the Red Sea and nearby inland routes.

Businesses can choose several coverage options, including:

  • End-to-end cargo protection across sea, air and land transit
  • Standalone ocean, air or land policies
  • Automatic port storage cover for up to 14 days
  • Coverage limits of up to $400 million per shipment

Lower premiums for businesses

DP World said it was able to secure more competitive pricing than standard market war risk premiums by leveraging its global scale and relationships across international insurance markets.

The move comes as businesses continue to face rising logistical risks, rerouting challenges and insurance costs linked to geopolitical instability across key global shipping lanes.

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