If an astronaut on a deep space mission returned to Earth years later, only to find their loved ones had aged decades, it would sound like something out of a sci-fi blockbuster.
This is, in fact, one of the most memorable scenes from Interstellar, where an astronaut’s journey near a black hole causes him to age much slower than his family back home.
But this effect, known as time dilation, is not just science fiction. It is a real, measurable phenomenon described by Einstein’s theory of relativity.
While today’s missions do not reach speeds anywhere close to what would be needed to create significant time dilation, future high-speed space travel could bring this effect into play.
“If an astronaut were on a high-speed journey, they’d feel time passing normally on-board,” Jonathan Ward, an astronomer and author of several highly acclaimed space history books, told The National.
“But when they returned and compared their clock to one back on Earth, they’d see that much more time had passed on Earth. The effect of time dilation becomes stronger the faster you go.”
Understanding time dilation
He said that time dilation at its core means that time does not pass at the same rate for everyone, especially under extreme conditions of speed or gravity.
“When you travel close to the speed of light, you experience time very differently than people who stay behind,” said Mr Ward, a fellow of the UK’s Royal Astronomical Society.
“The closer you get to light speed, the slower time moves for you relative to Earth.”
The speed of light is the fastest speed in the universe, travelling at about 300,000km/sec, which means light could circle the Earth more than seven times in just one second.
To illustrate time dilation, Mr Ward described a hypothetical journey to Alpha Centauri, the closest star system to our solar system, 4.37 light years away.
He said that if an astronaut travelled at 1 per cent of the speed of light to the star system, the journey would take about 874 years from Earth’s perspective, and the astronaut would experience the vast majority of this, 873.98 years to be exact.
“But at 90 per cent of light speed, while nearly 10 years would pass for those on Earth, the astronaut would experience only about 4.24 years of travel,” he said.
“The closer you get to light speed, the more dramatic the time difference. If you were a photon, a particle of light, no time would pass for you at all, regardless of how far you travelled.”
Why time dilation is already a factor in space missions
Time dilation might seem far off for future space missions, but its effects are already impacting the technology we use in space today.
Sahith Reddy Madara, an aerospace engineer and founder of Paris advisory firm Bumi and Space, told The National that engineers must keep time dilation in mind when operating satellites around Earth and nearby planets.
“Engineers account for every minute relativity effects daily, especially with GPS satellites in low-Earth orbit,” he said.
GPS satellites orbit the planet at 28,163kph, so their on board clocks run slower than Earth's clocks by about seven microseconds a day due to their speed, and 45 microseconds due to Earth’s gravitational pull, according to Mr Ward.
“In deep space missions, these adjustments would scale up, potentially affecting mission timelines and data accuracy the farther out we go,” said Mr Madara.
He said that time dilation becomes crucial if interstellar travel becomes possible in future.
Higher speeds would mean greater differences in time flow between the spacecraft and Earth, which could impact communication, potentially creating problems when monitoring an astronaut’s health.
“Special systems would definitely be needed – possibly AI-based time-adaptive systems – to help bridge the communication gap created by these relativistic differences,” said Mr Madara.
“In terms of health data, time dilation could add a twist. Medical research already faces challenges comparing data between astronauts and Earth-based controls due to the space environment itself.
“If an astronaut’s ‘time’ flows slower, syncing health data would become more complex.
“We might have to adjust the data to account for their slower biological ageing relative to Earth’s time, potentially reshaping how we interpret long-term space mission health outcomes.”
Time dilation has also been observed in astronauts on the International Space Station, as seen in Nasa’s twin study with Mark and Scott Kelly.
The research demonstrated a tiny but measurable effect of time dilation. While Scott was on the station, travelling at 28,000 kph, time for him passed slightly slower than it did for Mark, who remained on Earth.
This difference, though extremely small, resulted in Scott ageing a few milliseconds less than Mark over the year he spent in orbit.
The time dilation effect is a consequence of both the station’s speed and its position in Earth’s gravitational field.
Could future missions unlock new physics?
Beyond navigation and practical concerns, time dilation offers scientists a valuable tool for unlocking new findings in physics.
Prof Matthew Griffin from the University of Cardiff told The National that time dilation helps explain certain high-speed particles that reach the Earth’s surface.
One example is cosmic muons, particles created high in Earth’s atmosphere with very short lifespans.
“Muons decay in a characteristic time that is very short. They are detected on the ground even though their lifetimes (in their own frame of reference) are too short for them to get to the ground before they decay,” he said.
“Distance-dependent time-dilation effects due to the varying expansion rate of the universe since the Big Bang are also seen in astronomical observations of very distant galaxies and supernovae.
“It has also been verified by comparing ultra-precise time measurements using atomic clocks that have been in orbit with clocks that have stayed on the ground.”
Real estate tokenisation project
Dubai launched the pilot phase of its real estate tokenisation project last month.
The initiative focuses on converting real estate assets into digital tokens recorded on blockchain technology and helps in streamlining the process of buying, selling and investing, the Dubai Land Department said.
Dubai’s real estate tokenisation market is projected to reach Dh60 billion ($16.33 billion) by 2033, representing 7 per cent of the emirate’s total property transactions, according to the DLD.
Desert Warrior
Starring: Anthony Mackie, Aiysha Hart, Ben Kingsley
Director: Rupert Wyatt
Rating: 3/5
LA LIGA FIXTURES
Thursday (All UAE kick-off times)
Sevilla v Real Betis (midnight)
Friday
Granada v Real Betis (9.30pm)
Valencia v Levante (midnight)
Saturday
Espanyol v Alaves (4pm)
Celta Vigo v Villarreal (7pm)
Leganes v Real Valladolid (9.30pm)
Mallorca v Barcelona (midnight)
Sunday
Atletic Bilbao v Atletico Madrid (4pm)
Real Madrid v Eibar (9.30pm)
Real Sociedad v Osasuna (midnight)
Killing of Qassem Suleimani
Women%E2%80%99s%20T20%20World%20Cup%20Qualifier
%3Cp%3EFrom%20September%2018-25%2C%20Abu%20Dhabi%0D.%20The%20two%20finalists%20advance%20to%20the%20main%20event%20in%20South%20Africa%20in%20February%202023%0D%3Cbr%3E%20%0D%3Cbr%3EGroup%20A%3A%20United%20States%2C%20Ireland%2C%20Scotland%2C%20Bangladesh%0D%3Cbr%3EGroup%20B%3A%20UAE%2C%20Thailand%2C%20Zimbabwe%2C%20Papua%20New%20Guinea%0D%3Cbr%3E%20%0D%3Cbr%3EUAE%20group%20fixtures%3A%0D%3Cbr%3ESept%2018%2C%203pm%2C%20Zayed%20Cricket%20Stadium%20%E2%80%93%20UAE%20v%20Thailand%0D%3Cbr%3ESept%2019%2C%203pm%2C%20Tolerance%20Oval%20-%20PNG%20v%20UAE%0D%3Cbr%3ESept%2021%2C%207pm%2C%20Tolerance%20Oval%20%E2%80%93%20UAE%20v%20Zimbabwe%0D%3Cbr%3E%20%0D%3Cbr%3EUAE%20squad%3A%20Chaya%20Mughal%20(captain)%2C%20Esha%20Oza%2C%20Kavisha%20Kumari%2C%20Rinitha%20Rajith%2C%20Rithika%20Rajith%2C%20Khushi%20Sharma%2C%20Theertha%20Satish%2C%20Lavanya%20Keny%2C%20Priyanjali%20Jain%2C%20Suraksha%20Kotte%2C%20Natasha%20Cherriath%2C%20Indhuja%20Nandakumar%2C%20Vaishnave%20Mahesh%2C%20Siya%20Gokhale%2C%20Samaira%20Dharnidharka%0D%3C%2Fp%3E%0A
THE BIO
Favourite car: Koenigsegg Agera RS or Renault Trezor concept car.
Favourite book: I Am Pilgrim by Terry Hayes or Red Notice by Bill Browder.
Biggest inspiration: My husband Nik. He really got me through a lot with his positivity.
Favourite holiday destination: Being at home in Australia, as I travel all over the world for work. It’s great to just hang out with my husband and family.
The specs
BMW M8 Competition Coupe
Engine 4.4-litre twin-turbo V8
Power 625hp at 6,000rpm
Torque 750Nm from 1,800-5,800rpm
Gearbox Eight-speed paddleshift auto
Acceleration 0-100kph in 3.2 sec
Top speed 305kph
Fuel economy, combined 10.6L / 100km
Price from Dh700,000 (estimate)
On sale Jan/Feb 2020
UAE currency: the story behind the money in your pockets
Various Artists
Habibi Funk: An Eclectic Selection Of Music From The Arab World (Habibi Funk)
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%3Cp%3E%3Cstrong%3EDeveloper%3A%3C%2Fstrong%3E%20Sucker%20Punch%20Productions%3Cbr%3E%3Cstrong%3EPublisher%3A%3C%2Fstrong%3E%20Sony%20Computer%20Entertainment%3Cbr%3E%3Cstrong%3EConsole%3A%3C%2Fstrong%3E%20PlayStation%202%20to%205%3Cbr%3E%3Cstrong%3ERating%3A%3C%2Fstrong%3E%205%2F5%3C%2Fp%3E%0A
Mercer, the investment consulting arm of US services company Marsh & McLennan, expects its wealth division to at least double its assets under management (AUM) in the Middle East as wealth in the region continues to grow despite economic headwinds, a company official said.
Mercer Wealth, which globally has $160 billion in AUM, plans to boost its AUM in the region to $2-$3bn in the next 2-3 years from the present $1bn, said Yasir AbuShaban, a Dubai-based principal with Mercer Wealth.
“Within the next two to three years, we are looking at reaching $2 to $3 billion as a conservative estimate and we do see an opportunity to do so,” said Mr AbuShaban.
Mercer does not directly make investments, but allocates clients’ money they have discretion to, to professional asset managers. They also provide advice to clients.
“We have buying power. We can negotiate on their (client’s) behalf with asset managers to provide them lower fees than they otherwise would have to get on their own,” he added.
Mercer Wealth’s clients include sovereign wealth funds, family offices, and insurance companies among others.
From its office in Dubai, Mercer also looks after Africa, India and Turkey, where they also see opportunity for growth.
Wealth creation in Middle East and Africa (MEA) grew 8.5 per cent to $8.1 trillion last year from $7.5tn in 2015, higher than last year’s global average of 6 per cent and the second-highest growth in a region after Asia-Pacific which grew 9.9 per cent, according to consultancy Boston Consulting Group (BCG). In the region, where wealth grew just 1.9 per cent in 2015 compared with 2014, a pickup in oil prices has helped in wealth generation.
BCG is forecasting MEA wealth will rise to $12tn by 2021, growing at an annual average of 8 per cent.
Drivers of wealth generation in the region will be split evenly between new wealth creation and growth of performance of existing assets, according to BCG.
Another general trend in the region is clients’ looking for a comprehensive approach to investing, according to Mr AbuShaban.
“Institutional investors or some of the families are seeing a slowdown in the available capital they have to invest and in that sense they are looking at optimizing the way they manage their portfolios and making sure they are not investing haphazardly and different parts of their investment are working together,” said Mr AbuShaban.
Some clients also have a higher appetite for risk, given the low interest-rate environment that does not provide enough yield for some institutional investors. These clients are keen to invest in illiquid assets, such as private equity and infrastructure.
“What we have seen is a desire for higher returns in what has been a low-return environment specifically in various fixed income or bonds,” he said.
“In this environment, we have seen a de facto increase in the risk that clients are taking in things like illiquid investments, private equity investments, infrastructure and private debt, those kind of investments were higher illiquidity results in incrementally higher returns.”
The Abu Dhabi Investment Authority, one of the largest sovereign wealth funds, said in its 2016 report that has gradually increased its exposure in direct private equity and private credit transactions, mainly in Asian markets and especially in China and India. The authority’s private equity department focused on structured equities owing to “their defensive characteristics.”
Cryopreservation: A timeline
- Keyhole surgery under general anaesthetic
- Ovarian tissue surgically removed
- Tissue processed in a high-tech facility
- Tissue re-implanted at a time of the patient’s choosing
- Full hormone production regained within 4-6 months
What vitamins do we know are beneficial for living in the UAE
Vitamin D: Highly relevant in the UAE due to limited sun exposure; supports bone health, immunity and mood.
Vitamin B12: Important for nerve health and energy production, especially for vegetarians, vegans and individuals with absorption issues.
Iron: Useful only when deficiency or anaemia is confirmed; helps reduce fatigue and support immunity.
Omega-3 (EPA/DHA): Supports heart health and reduces inflammation, especially for those who consume little fish.
Company%20Profile
%3Cp%3E%3Cstrong%3ECompany%20name%3A%3C%2Fstrong%3E%20Cargoz%3Cbr%3E%3Cstrong%3EDate%20started%3A%3C%2Fstrong%3E%20January%202022%3Cbr%3E%3Cstrong%3EFounders%3A%3C%2Fstrong%3E%20Premlal%20Pullisserry%20and%20Lijo%20Antony%3Cbr%3E%3Cstrong%3EBased%3A%3C%2Fstrong%3E%20Dubai%3Cbr%3E%3Cstrong%3ENumber%20of%20staff%3A%3C%2Fstrong%3E%2030%3Cbr%3E%3Cstrong%3EInvestment%20stage%3A%3C%2Fstrong%3E%20Seed%3C%2Fp%3E%0A
COMPANY%20PROFILE
%3Cp%3E%3Cstrong%3ECompany%20name%3A%3C%2Fstrong%3E%20Revibe%20%0D%3Cbr%3E%3Cstrong%3EStarted%3A%3C%2Fstrong%3E%202022%0D%3Cbr%3E%3Cstrong%3EFounders%3A%3C%2Fstrong%3E%20Hamza%20Iraqui%20and%20Abdessamad%20Ben%20Zakour%20%0D%3Cbr%3E%3Cstrong%3EBased%3A%3C%2Fstrong%3E%20UAE%20%0D%3Cbr%3E%3Cstrong%3EIndustry%3A%3C%2Fstrong%3E%20Refurbished%20electronics%20%0D%3Cbr%3E%3Cstrong%3EFunds%20raised%20so%20far%3A%3C%2Fstrong%3E%20%2410m%20%0D%3Cbr%3E%3Cstrong%3EInvestors%3A%20%3C%2Fstrong%3EFlat6Labs%2C%20Resonance%20and%20various%20others%0D%3C%2Fp%3E%0A
Tenet
Director: Christopher Nolan
Stars: John David Washington, Robert Pattinson, Elizabeth Debicki, Dimple Kapadia, Michael Caine, Kenneth Branagh
Rating: 5/5
The specs: 2019 Haval H6
Price, base: Dh69,900
Engine: 2.0-litre turbocharged four-cylinder
Transmission: Seven-speed automatic
Power: 197hp @ 5,500rpm
Torque: 315Nm @ 2,000rpm
Fuel economy, combined: 7.0L / 100km
TRAINING FOR TOKYO
A typical week's training for Sebastian, who is competing at the ITU Abu Dhabi World Triathlon on March 8-9:
- Four swim sessions (14km)
- Three bike sessions (200km)
- Four run sessions (45km)
- Two strength and conditioning session (two hours)
- One session therapy session at DISC Dubai
- Two-three hours of stretching and self-maintenance of the body
ITU Abu Dhabi World Triathlon
For more information go to www.abudhabi.triathlon.org.
Trump v Khan
2016: Feud begins after Khan criticised Trump’s proposed Muslim travel ban to US
2017: Trump criticises Khan’s ‘no reason to be alarmed’ response to London Bridge terror attacks
2019: Trump calls Khan a “stone cold loser” before first state visit
2019: Trump tweets about “Khan’s Londonistan”, calling him “a national disgrace”
2022: Khan’s office attributes rise in Islamophobic abuse against the major to hostility stoked during Trump’s presidency
July 2025 During a golfing trip to Scotland, Trump calls Khan “a nasty person”
Sept 2025 Trump blames Khan for London’s “stabbings and the dirt and the filth”.
Dec 2025 Trump suggests migrants got Khan elected, calls him a “horrible, vicious, disgusting mayor”
Series information
Pakistan v Dubai
First Test, Dubai International Stadium
Sun Oct 6 to Thu Oct 11
Second Test, Zayed Stadium, Abu Dhabi
Tue Oct 16 to Sat Oct 20
Play starts at 10am each day
Teams
Pakistan
1 Mohammed Hafeez, 2 Imam-ul-Haq, 3 Azhar Ali, 4 Asad Shafiq, 5 Haris Sohail, 6 Babar Azam, 7 Sarfraz Ahmed, 8 Bilal Asif, 9 Yasir Shah, 10, Mohammed Abbas, 11 Wahab Riaz or Mir Hamza
Australia
1 Usman Khawaja, 2 Aaron Finch, 3 Shaun Marsh, 4 Mitchell Marsh, 5 Travis Head, 6 Marnus Labuschagne, 7 Tim Paine, 8 Mitchell Starc, 9 Peter Siddle, 10 Nathan Lyon, 11 Jon Holland
Why%20all%20the%20lefties%3F
%3Cp%3ESix%20of%20the%20eight%20fast%20bowlers%20used%20in%20the%20ILT20%20match%20between%20Desert%20Vipers%20and%20MI%20Emirates%20were%20left-handed.%20So%2075%20per%20cent%20of%20those%20involved.%0D%3Cbr%3EAnd%20that%20despite%20the%20fact%2010-12%20per%20cent%20of%20the%20world%E2%80%99s%20population%20is%20said%20to%20be%20left-handed.%0D%3Cbr%3EIt%20is%20an%20extension%20of%20a%20trend%20which%20has%20seen%20left-arm%20pacers%20become%20highly%20valued%20%E2%80%93%20and%20over-represented%2C%20relative%20to%20other%20formats%20%E2%80%93%20in%20T20%20cricket.%0D%3Cbr%3EIt%20is%20all%20to%20do%20with%20the%20fact%20most%20batters%20are%20naturally%20attuned%20to%20the%20angles%20created%20by%20right-arm%20bowlers%2C%20given%20that%20is%20generally%20what%20they%20grow%20up%20facing%20more%20of.%0D%3Cbr%3EIn%20their%20book%2C%20%3Cem%3EHitting%20Against%20the%20Spin%3C%2Fem%3E%2C%20cricket%20data%20analysts%20Nathan%20Leamon%20and%20Ben%20Jones%20suggest%20the%20advantage%20for%20a%20left-arm%20pace%20bowler%20in%20T20%20is%20amplified%20because%20of%20the%20obligation%20on%20the%20batter%20to%20attack.%0D%3Cbr%3E%E2%80%9CThe%20more%20attacking%20the%20batsman%2C%20the%20more%20reliant%20they%20are%20on%20anticipation%2C%E2%80%9D%20they%20write.%0D%3Cbr%3E%E2%80%9CThis%20effectively%20increases%20the%20time%20pressure%20on%20the%20batsman%2C%20so%20increases%20the%20reliance%20on%20anticipation%2C%20and%20therefore%20increases%20the%20left-arm%20bowler%E2%80%99s%20advantage.%E2%80%9D%0D%3Cbr%3E%3C%2Fp%3E%0A
Timeline
2012-2015
The company offers payments/bribes to win key contracts in the Middle East
May 2017
The UK SFO officially opens investigation into Petrofac’s use of agents, corruption, and potential bribery to secure contracts
September 2021
Petrofac pleads guilty to seven counts of failing to prevent bribery under the UK Bribery Act
October 2021
Court fines Petrofac £77 million for bribery. Former executive receives a two-year suspended sentence
December 2024
Petrofac enters into comprehensive restructuring to strengthen the financial position of the group
May 2025
The High Court of England and Wales approves the company’s restructuring plan
July 2025
The Court of Appeal issues a judgment challenging parts of the restructuring plan
August 2025
Petrofac issues a business update to execute the restructuring and confirms it will appeal the Court of Appeal decision
October 2025
Petrofac loses a major TenneT offshore wind contract worth €13 billion. Holding company files for administration in the UK. Petrofac delisted from the London Stock Exchange
November 2025
180 Petrofac employees laid off in the UAE
Classification of skills
A worker is categorised as skilled by the MOHRE based on nine levels given in the International Standard Classification of Occupations (ISCO) issued by the International Labour Organisation.
A skilled worker would be someone at a professional level (levels 1 – 5) which includes managers, professionals, technicians and associate professionals, clerical support workers, and service and sales workers.
The worker must also have an attested educational certificate higher than secondary or an equivalent certification, and earn a monthly salary of at least Dh4,000.
