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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.”

Weather

UAE weather alert: Rain, strong winds, and dust expected to peak by Friday

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The UAE skies have been looking especially dramatic lately. Moderate to heavy rain has been sweeping across parts of the country over the past few days, and it’s not done yet. Unstable weather conditions are expected to linger well into the weekend, with more showers, gusty winds, and dusty spells in the mix.

If anything, Friday looks like a heavy weather day, so it’s one of those weeks where keeping an eye on updates is vital.

The National Centre of Meteorology (NCM) has issued weather alerts across the UAE, warning of rain, strong winds, and dusty conditions continuing through Friday, with the most intense conditions expected at the end of the week.

The weather conditions now

  • Yellow & Orange alerts are active
  • Rain is expected across coastal and inland areas, day and night
  • Winds may kick up dust and sand, reducing visibility (especially for drivers)

These conditions are being driven by convective clouds, basically, the kind that bring sudden rain and gusty weather.

Day-by-day forecast

Wednesday

  • Partly cloudy to cloudy skies
  • Scattered rain during the day
  • Heavier showers are expected in the eastern regions and Al Ain at night
  • Winds up to 50 km/h

Thursday

  • Light rain early on
  • Rain intensifies later in the day, especially in northern and eastern areas
  • Showers may extend overnight to coastal regions
  • Dusty winds likely

Friday 

  • Heavy rains expected across most of the UAE
  • Noticeable drop in temperatures 
  • Strong winds up to 60 km/h
  • Rough sea conditions 

Saturday

  • Conditions are expected to improve
  • Clearer skies, but it will still be breezy, with a drop in temperature

Driving and sailing conditions

  • Seas will be rough in both the Arabian Gulf and the Sea of Oman
  • Drivers should be extra cautious due to:
    • Reduced visibility
    • Wet roads
    • Blowing dust

Authorities are advising residents to:

  • Avoid flood-prone areas and valleys
  • Stay away from beaches during rough conditions
  • Drive carefully and follow official updates
  • Keep an eye on weather alerts before heading out

Emergency teams on high alert

Municipal, police and road transport teams are in action throughout the country:

  • The Sharjah Civil Defence Authority has strengthened its field readiness with field teams and specialised equipment that have been deployed across critical locations, flood-prone areas, and wadi beds in coordination with relevant authorities. 
  • Emergency teams have also been working around the clock in Dubai and Abu Dhabi.
  • In Al Dhafra, hundreds of cases were handled within hours, while in Dibba Al Hisn, teams are working to manage drainage and traffic
  • Ajman has ramped up preparedness as part of nationwide efforts

From clearing waterlogged roads to monitoring drainage systems, response teams are making sure things stay under control.

Residents and visitors can expect a mix of rain, gusty winds, and dusty conditions, especially as the weather intensifies heading into Friday. Authorities are urging everyone to stay indoors where possible and prioritise safety during this period of unstable weather.

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Business

Dubai’s unified car rental contract explained: What residents and tourists must know

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Dubai’s Roads and Transport Authority (RTA) is reinforcing stricter rules for car rentals across the emirate, and it’s good news for both residents and tourists.

At the heart of this move is a mandatory unified contract that all rental companies must follow. This contract standardises how rental agreements work, clearly laying out the rights and responsibilities of both renters and rental offices in a transparent way.

“We have also organised a series of awareness workshops for companies operating in the car rental sector across the emirate to familiarise them with the contract’s provisions, obligations, and implementation procedures,” said Ahmed Mahboob, CEO of the Licensing Agency at RTA.

What this means for drivers

  • Same rules everywhere
    Whether you rent from a big brand or a small office, the same contract applies across Dubai, no more confusing or inconsistent terms.
  • Stronger consumer protection
    The contract ensures:
    • No hidden fees (like surprise toll charges)
    • No unfair charges during accident repairs
    • Mandatory refund of your security deposit within a set timeframe
  • Digital and secure process
    Rentals are handled through the Transport Activities Rental System (TARS), with:
    • Identity verification
    • OTP-based digital signatures
    • Secure, automated contracts
  • Proof of vehicle condition
    Photos are taken at pickup and return, protecting you from disputes over damage.
  • Better awareness for renters
    The system is designed to reduce complaints and help users, especially tourists, fully understand their rights before signing.

This move aligns with Dubai’s push to enhance trust and transparency in services, reinforcing its reputation as a well-regulated, customer-friendly destination.

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News

UAE warns drivers: Fines up to Dh2,000, 23 black points for risky driving during heavy rains

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Authorities across the UAE have issued a fresh warning to motorists, urging them to exercise extreme caution during ongoing unstable weather conditions. The reminder comes as part of efforts to enhance road safety and prevent accidents in high-risk areas such as valleys, flood zones, and near dams.

The UAE authorities emphasised that strict penalties are in place for violations during rainfall. Motorists found driving near valleys or flood-prone areas could face a fine of Dh1,000 along with 6 black points on their license.

More severe penalties apply to those who deliberately drive into flooded valleys, regardless of the water level or perceived danger. Offenders risk fines of up to Dh2,000, 23 black points, and a 60-day vehicle impoundment.

Additionally, authorities warned against obstructing emergency responders or traffic officials during adverse weather situations. Such actions could result in a Dh1,000 fine, 4 black points, and vehicle impoundment for up to 60 days.

Officials continue to urge drivers to prioritise safety, follow official advisories, and avoid unnecessary travel during severe weather conditions to prevent accidents and ensure smooth emergency response operations.


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