Scientists in Abu Dhabi are celebrating their role in a mind-boggling achievement: detecting an event that typically occurs just once in 18,000 billion billion years.
That’s around a million million times longer than the age of the universe – and the rarest such event ever detected.
Based at NYU Abu Dhabi, the scientists are part of an international team that pulled off the feat during an experiment designed to detect dark matter, a mysterious substance thought to be lurking throughout the cosmos.
Despite making up most of the mass in the universe, the nature of dark matter remains unknown. In an attempt to find out, the team has built XENON1T, an underground detector in Italy consisting of a giant tank of liquid xenon.
Any dark matter particles passing through should hit the xenon atoms and trigger a response.
But along with ordinary xenon, the detector contains traces of a rare isotope known as Xe-124, whose atoms are predicted to be unstable and capable of triggering their own signals.
These events were expected to be rare, and now XENON1T has pinned down just how rare. In results published in the current issue of the journal Nature¸ the team has shown that Xe-124 atoms are indeed unstable – but on timescales far longer than the age of the universe.
It shows that if anyone can detect dark matter, it must be us
To get around the problem of having to wait so long, the team exploited the fact that even staggeringly rare random events can happen if given enough opportunity.
In the case of xenon, while any one atom is very unlikely to decay over the course of a year, the chances soar if enough atoms are brought together.
Filled with over three tonnes of ordinary xenon, the detector contains around 10 million billion billion atoms of Xe-124. Even with an incredibly long lifetime, this huge number of atoms is virtually guaranteed to contain several hundred that decay over the course of a year.
Between 2016 and the end of last year, the team detected 126 decays – enough to pin down the lifetime of the average Xe-124 atom to 18,000 billion billion years.
The achievement is more than just an esoteric party-trick, however. It demonstrates that it’s possible to build a detector both big enough and sensitive enough to detect incredibly rare events – and screen out false alarms.
“This particular measurement shows its extraordinary performance and opens the door for other exciting measurements”, says NYU Abu Dhabi team leader professor Francesco Arneodo, who joined the university in 2013 after more than a decade working on the xenon project. “Plus, it shows that if anyone can detect dark matter, it must be us!”.
The team is now working to upgrade the detector to create XENONnT, which will be bigger, even better-protected from stray signals and around ten times more sensitive.
Whether it will succeed in its goal is far from clear, however. Similar experiments have so far found no sign of dark matter particles, despite operating for years.
This has sparked concern that the theory predicting the properties of the particles – known as supersymmetry – is fundamentally flawed.
Experiments at the giant Large Hadron Collider in Switzerland have so far failed to find any evidence to support supersymmetry, which predicts the likely mass of dark matter particles.
This has led some theorists to question the very existence of dark matter, and instead suggest that its apparent effects are due to some as-yet unexplained force affecting galaxies.
What the xenon experiment has done, however, is garner yet more evidence for the impermanence of things.
Since the discovery of radioactivity over a century ago, scientists have found that apparently stable building-blocks of matter decay eventually. In the 1970s, theorists predicted that even protons – found at the heart of every atom – should decay on timescales billions of times longer than that of Xe-124.
Yet despite decades of effort using the same trick as that used by the XENON1T team, no sign of proton decay has yet been seen.
As with dark matter, scientists can’t decide if their theories are wrong or if they just need to be more patient. Time will tell.
Robert Matthews is Visiting Professor of Science at Aston University, Birmingham, UK
Watch live
The National will broadcast live from the IMF on Friday October 13 at 7pm UAE time (3pm GMT) as our Editor-in-Chief Mina Al-Oraibi moderates a panel on how technology can help growth in MENA.
You can find out more here
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Paatal Lok season two
Directors: Avinash Arun, Prosit Roy
Stars: Jaideep Ahlawat, Ishwak Singh, Lc Sekhose, Merenla Imsong
Rating: 4.5/5
PROFILE OF INVYGO
Started: 2018
Founders: Eslam Hussein and Pulkit Ganjoo
Based: Dubai
Sector: Transport
Size: 9 employees
Investment: $1,275,000
Investors: Class 5 Global, Equitrust, Gulf Islamic Investments, Kairos K50 and William Zeqiri
The specs
Engine: 6.2-litre supercharged V8
Power: 712hp at 6,100rpm
Torque: 881Nm at 4,800rpm
Transmission: 8-speed auto
Fuel consumption: 19.6 l/100km
Price: Dh380,000
On sale: now
The specs
Engine: 4.0-litre V8 twin-turbocharged and three electric motors
Power: Combined output 920hp
Torque: 730Nm at 4,000-7,000rpm
Transmission: 8-speed dual-clutch automatic
Fuel consumption: 11.2L/100km
On sale: Now, deliveries expected later in 2025
Price: expected to start at Dh1,432,000
Mountain%20Boy
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Key facilities
- Olympic-size swimming pool with a split bulkhead for multi-use configurations, including water polo and 50m/25m training lanes
- Premier League-standard football pitch
- 400m Olympic running track
- NBA-spec basketball court with auditorium
- 600-seat auditorium
- Spaces for historical and cultural exploration
- An elevated football field that doubles as a helipad
- Specialist robotics and science laboratories
- AR and VR-enabled learning centres
- Disruption Lab and Research Centre for developing entrepreneurial skills
Where to donate in the UAE
The Emirates Charity Portal
You can donate to several registered charities through a “donation catalogue”. The use of the donation is quite specific, such as buying a fan for a poor family in Niger for Dh130.
The General Authority of Islamic Affairs & Endowments
The site has an e-donation service accepting debit card, credit card or e-Dirham, an electronic payment tool developed by the Ministry of Finance and First Abu Dhabi Bank.
Al Noor Special Needs Centre
You can donate online or order Smiles n’ Stuff products handcrafted by Al Noor students. The centre publishes a wish list of extras needed, starting at Dh500.
Beit Al Khair Society
Beit Al Khair Society has the motto “From – and to – the UAE,” with donations going towards the neediest in the country. Its website has a list of physical donation sites, but people can also contribute money by SMS, bank transfer and through the hotline 800-22554.
Dar Al Ber Society
Dar Al Ber Society, which has charity projects in 39 countries, accept cash payments, money transfers or SMS donations. Its donation hotline is 800-79.
Dubai Cares
Dubai Cares provides several options for individuals and companies to donate, including online, through banks, at retail outlets, via phone and by purchasing Dubai Cares branded merchandise. It is currently running a campaign called Bookings 2030, which allows people to help change the future of six underprivileged children and young people.
Emirates Airline Foundation
Those who travel on Emirates have undoubtedly seen the little donation envelopes in the seat pockets. But the foundation also accepts donations online and in the form of Skywards Miles. Donated miles are used to sponsor travel for doctors, surgeons, engineers and other professionals volunteering on humanitarian missions around the world.
Emirates Red Crescent
On the Emirates Red Crescent website you can choose between 35 different purposes for your donation, such as providing food for fasters, supporting debtors and contributing to a refugee women fund. It also has a list of bank accounts for each donation type.
Gulf for Good
Gulf for Good raises funds for partner charity projects through challenges, like climbing Kilimanjaro and cycling through Thailand. This year’s projects are in partnership with Street Child Nepal, Larchfield Kids, the Foundation for African Empowerment and SOS Children's Villages. Since 2001, the organisation has raised more than $3.5 million (Dh12.8m) in support of over 50 children’s charities.
Noor Dubai Foundation
Sheikh Mohammed bin Rashid Al Maktoum launched the Noor Dubai Foundation a decade ago with the aim of eliminating all forms of preventable blindness globally. You can donate Dh50 to support mobile eye camps by texting the word “Noor” to 4565 (Etisalat) or 4849 (du).
ESSENTIALS
The flights
Emirates flies from Dubai to Phnom Penh via Yangon from Dh2,700 return including taxes. Cambodia Bayon Airlines and Cambodia Angkor Air offer return flights from Phnom Penh to Siem Reap from Dh250 return including taxes. The flight takes about 45 minutes.
The hotels
Rooms at the Raffles Le Royal in Phnom Penh cost from $225 (Dh826) per night including taxes. Rooms at the Grand Hotel d'Angkor cost from $261 (Dh960) per night including taxes.
The tours
A cyclo architecture tour of Phnom Penh costs from $20 (Dh75) per person for about three hours, with Khmer Architecture Tours. Tailor-made tours of all of Cambodia, or sites like Angkor alone, can be arranged by About Asia Travel. Emirates Holidays also offers packages.
More from Rashmee Roshan Lall
MISSION: IMPOSSIBLE – FINAL RECKONING
Director: Christopher McQuarrie
Starring: Tom Cruise, Hayley Atwell, Simon Pegg
Rating: 4/5
COMPANY PROFILE
Name: Lamsa
Founder: Badr Ward
Launched: 2014
Employees: 60
Based: Abu Dhabi
Sector: EdTech
Funding to date: $15 million
Stats at a glance:
Cost: 1.05 billion pounds (Dh 4.8 billion)
Number in service: 6
Complement 191 (space for up to 285)
Top speed: over 32 knots
Range: Over 7,000 nautical miles
Length 152.4 m
Displacement: 8,700 tonnes
Beam: 21.2 m
Draught: 7.4 m
COMPANY%20PROFILE
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Benefits of first-time home buyers' scheme
- Priority access to new homes from participating developers
- Discounts on sales price of off-plan units
- Flexible payment plans from developers
- Mortgages with better interest rates, faster approval times and reduced fees
- DLD registration fee can be paid through banks or credit cards at zero interest rates
Brief scoreline:
Manchester United 0
Manchester City 2
Bernardo Silva 54', Sane 66'
World record transfers
1. Kylian Mbappe - to Real Madrid in 2017/18 - €180 million (Dh770.4m - if a deal goes through)
2. Paul Pogba - to Manchester United in 2016/17 - €105m
3. Gareth Bale - to Real Madrid in 2013/14 - €101m
4. Cristiano Ronaldo - to Real Madrid in 2009/10 - €94m
5. Gonzalo Higuain - to Juventus in 2016/17 - €90m
6. Neymar - to Barcelona in 2013/14 - €88.2m
7. Romelu Lukaku - to Manchester United in 2017/18 - €84.7m
8. Luis Suarez - to Barcelona in 2014/15 - €81.72m
9. Angel di Maria - to Manchester United in 2014/15 - €75m
10. James Rodriguez - to Real Madrid in 2014/15 - €75m
Company Profile:
Name: The Protein Bakeshop
Date of start: 2013
Founders: Rashi Chowdhary and Saad Umerani
Based: Dubai
Size, number of employees: 12
Funding/investors: $400,000 (2018)
Tips to stay safe during hot weather
- Stay hydrated: Drink plenty of fluids, especially water. Avoid alcohol and caffeine, which can increase dehydration.
- Seek cool environments: Use air conditioning, fans, or visit community spaces with climate control.
- Limit outdoor activities: Avoid strenuous activity during peak heat. If outside, seek shade and wear a wide-brimmed hat.
- Dress appropriately: Wear lightweight, loose and light-coloured clothing to facilitate heat loss.
- Check on vulnerable people: Regularly check in on elderly neighbours, young children and those with health conditions.
- Home adaptations: Use blinds or curtains to block sunlight, avoid using ovens or stoves, and ventilate living spaces during cooler hours.
- Recognise heat illness: Learn the signs of heat exhaustion and heat stroke (dizziness, confusion, rapid pulse, nausea), and seek medical attention if symptoms occur.
Specs
Engine: Duel electric motors
Power: 659hp
Torque: 1075Nm
On sale: Available for pre-order now
Price: On request
Ferrari 12Cilindri specs
Engine: naturally aspirated 6.5-liter V12
Power: 819hp
Torque: 678Nm at 7,250rpm
Price: From Dh1,700,000
Available: Now
The%20specs
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UAE currency: the story behind the money in your pockets
The Specs
Engine 3.8-litre, twin-turbo V8
Transmission: eight-speed automatic
Power: 582bhp (542bhp in GTS model)
Torque: 730Nm
Price: Dh649,000 (Dh549,000 for GTS)
Race card
5pm: Maiden (PA) Dh80,000 (Turf) 1,600m
5.30pm: Handicap (PA) Dh80,000 (T) 1,600m
6pm: Arabian Triple Crown Round-1 Listed (PA) Dh230,000 (T) 1,600m
6.30pm: Wathba Stallions Cup Handicap (PA) Dh70,000 (T) 1,400m
7pm: Maiden (PA) Dh80,000 (T) 1,200m
7.30pm: Handicap (TB) Dh100,000 (T) 2,400m
Mia Man’s tips for fermentation
- Start with a simple recipe such as yogurt or sauerkraut
- Keep your hands and kitchen tools clean. Sanitize knives, cutting boards, tongs and storage jars with boiling water before you start.
- Mold is bad: the colour pink is a sign of mold. If yogurt turns pink as it ferments, you need to discard it and start again. For kraut, if you remove the top leaves and see any sign of mold, you should discard the batch.
- Always use clean, closed, airtight lids and containers such as mason jars when fermenting yogurt and kraut. Keep the lid closed to prevent insects and contaminants from getting in.
Killing of Qassem Suleimani
Specs
Engine: Electric motor generating 54.2kWh (Cooper SE and Aceman SE), 64.6kW (Countryman All4 SE)
Power: 218hp (Cooper and Aceman), 313hp (Countryman)
Torque: 330Nm (Cooper and Aceman), 494Nm (Countryman)
On sale: Now
Price: From Dh158,000 (Cooper), Dh168,000 (Aceman), Dh190,000 (Countryman)
UAE currency: the story behind the money in your pockets
Killing of Qassem Suleimani
Common%20symptoms%20of%20MS
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BRIEF SCORES:
Toss: Nepal, chose to field
UAE 153-6: Shaiman (59), Usman (30); Regmi 2-23
Nepal 132-7: Jora 53 not out; Zahoor 2-17
Result: UAE won by 21 runs
Series: UAE lead 1-0
Company%20profile
%3Cp%3E%3Cstrong%3ECompany%20name%3A%3C%2Fstrong%3E%20Fasset%0D%3Cbr%3E%3Cstrong%3EStarted%3A%20%3C%2Fstrong%3E2019%0D%3Cbr%3E%3Cstrong%3EFounders%3A%3C%2Fstrong%3E%20Mohammad%20Raafi%20Hossain%2C%20Daniel%20Ahmed%0D%3Cbr%3E%3Cstrong%3EBased%3A%3C%2Fstrong%3E%20Dubai%0D%3Cbr%3E%3Cstrong%3ESector%3A%20%3C%2Fstrong%3EFinTech%0D%3Cbr%3E%3Cstrong%3EInitial%20investment%3A%3C%2Fstrong%3E%20%242.45%20million%0D%3Cbr%3E%3Cstrong%3ECurrent%20number%20of%20staff%3A%3C%2Fstrong%3E%2086%0D%3Cbr%3E%3Cstrong%3EInvestment%20stage%3A%3C%2Fstrong%3E%20Pre-series%20B%0D%3Cbr%3E%3Cstrong%3EInvestors%3A%3C%2Fstrong%3E%20Investcorp%2C%20Liberty%20City%20Ventures%2C%20Fatima%20Gobi%20Ventures%2C%20Primal%20Capital%2C%20Wealthwell%20Ventures%2C%20FHS%20Capital%2C%20VN2%20Capital%2C%20local%20family%20offices%3C%2Fp%3E%0A
NO OTHER LAND
Director: Basel Adra, Yuval Abraham, Rachel Szor, Hamdan Ballal
Stars: Basel Adra, Yuval Abraham
Rating: 3.5/5
What is dialysis?
Dialysis is a way of cleaning your blood when your kidneys fail and can no longer do the job.
It gets rid of your body's wastes, extra salt and water, and helps to control your blood pressure. The main cause of kidney failure is diabetes and hypertension.
There are two kinds of dialysis — haemodialysis and peritoneal.
In haemodialysis, blood is pumped out of your body to an artificial kidney machine that filter your blood and returns it to your body by tubes.
In peritoneal dialysis, the inside lining of your own belly acts as a natural filter. Wastes are taken out by means of a cleansing fluid which is washed in and out of your belly in cycles.
It isn’t an option for everyone but if eligible, can be done at home by the patient or caregiver. This, as opposed to home haemodialysis, is covered by insurance in the UAE.
