Scientists have found evidence that the universe has a background hum, or ripples in the fabric of space-time called gravitational waves.
These were first proposed by Albert Einstein in 1916 but were not detected until about 100 years later.
Now, the waves echoing through the universe have been recorded for the first time in the form of radio data, it was announced on Wednesday.
Researchers from the North American Nanohertz Observatory for Gravitational Waves (NanoGrav) spent 15 years collecting data from ground-based telescopes, with findings now published in the Astrophysical Journal Letters.
"In the new studies, NanoGrav is thought to have picked up a collective hum of gravitational waves from many pairs of merging supermassive black holes throughout the universe," said Caltech University, which is a part of the observatory.
NanoGrav scientists monitored 68 dead stars, called pulsars, that acted like a network of signals filled with gravitational waves.
The motion of black holes and other massive objects through space creates ripples in the fabric of the universe.
The gravitational waves are thought to have been created over eons by supermassive black holes – which are up to billions of times the mass of the Sun – circling each other before they merge.
"The effect of the gravitational waves on the pulsars is extremely weak and hard to detect, but we built confidence in the findings over time as we collected more data," Katerina Chatziioannou, a NanoGrav team member and an assistant professor of physics at Caltech University, said.
"People have tried to find merging supermassive black holes with telescopes for years.
"They are getting closer and finding more candidates, but because the black holes are so close together, they are hard to distinguish.
"Having gravitational waves as a new tool will help better understand these enigmatic beasts."
Nasa said in a statement that detecting gravitational wave background could be compared with hearing the hum of a large group of people talking at a party, without distinguishing any particular voice.
It said that the findings could help scientists learn how the waves are created and what happens as they echo through the universe.
"They could also be used to study supermassive black hole mergers, events that can last for millions of years. Scientists think these mergers happen in most galaxies and influence their evolution," Nasa said.
The Laser Interferometer Gravitational Observatory made the first ever detection of gravitational waves in 2015.
But they were at a much shorter wavelength than the new discovery, meaning they were detected from black holes that were only about 30 times the mass of the Sun.
MATCH INFO
World Cup qualifier
Thailand 2 (Dangda 26', Panya 51')
UAE 1 (Mabkhout 45 2')
Ziina users can donate to relief efforts in Beirut
Ziina users will be able to use the app to help relief efforts in Beirut, which has been left reeling after an August blast caused an estimated $15 billion in damage and left thousands homeless. Ziina has partnered with the United Nations High Commissioner for Refugees to raise money for the Lebanese capital, co-founder Faisal Toukan says. “As of October 1, the UNHCR has the first certified badge on Ziina and is automatically part of user's top friends' list during this campaign. Users can now donate any amount to the Beirut relief with two clicks. The money raised will go towards rebuilding houses for the families that were impacted by the explosion.”
RESULTS
hall of shame
SUNDERLAND 2002-03
No one has ended a Premier League season quite like Sunderland. They lost each of their final 15 games, taking no points after January. They ended up with 19 in total, sacking managers Peter Reid and Howard Wilkinson and losing 3-1 to Charlton when they scored three own goals in eight minutes.
SUNDERLAND 2005-06
Until Derby came along, Sunderland’s total of 15 points was the Premier League’s record low. They made it until May and their final home game before winning at the Stadium of Light while they lost a joint record 29 of their 38 league games.
HUDDERSFIELD 2018-19
Joined Derby as the only team to be relegated in March. No striker scored until January, while only two players got more assists than goalkeeper Jonas Lossl. The mid-season appointment Jan Siewert was to end his time as Huddersfield manager with a 5.3 per cent win rate.
ASTON VILLA 2015-16
Perhaps the most inexplicably bad season, considering they signed Idrissa Gueye and Adama Traore and still only got 17 points. Villa won their first league game, but none of the next 19. They ended an abominable campaign by taking one point from the last 39 available.
FULHAM 2018-19
Terrible in different ways. Fulham’s total of 26 points is not among the lowest ever but they contrived to get relegated after spending over £100 million (Dh457m) in the transfer market. Much of it went on defenders but they only kept two clean sheets in their first 33 games.
LA LIGA: Sporting Gijon, 13 points in 1997-98.
BUNDESLIGA: Tasmania Berlin, 10 points in 1965-66
Results
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GAC GS8 Specs
Engine: 2.0-litre 4cyl turbo
Power: 248hp at 5,200rpm
Torque: 400Nm at 1,750-4,000rpm
Transmission: 8-speed auto
Fuel consumption: 9.1L/100km
On sale: Now
Price: From Dh149,900
MATCH INFO
Uefa Champions League, Group B
Barcelona v Inter Milan
Camp Nou, Barcelona
Wednesday, 11pm (UAE)
So what is Spicy Chickenjoy?
Just as McDonald’s has the Big Mac, Jollibee has Spicy Chickenjoy – a piece of fried chicken that’s crispy and spicy on the outside and comes with a side of spaghetti, all covered in tomato sauce and topped with sausage slices and ground beef. It sounds like a recipe that a child would come up with, but perhaps that’s the point – a flavourbomb combination of cheap comfort foods. Chickenjoy is Jollibee’s best-selling product in every country in which it has a presence.
Milestones on the road to union
1970
October 26: Bahrain withdraws from a proposal to create a federation of nine with the seven Trucial States and Qatar.
December: Ahmed Al Suwaidi visits New York to discuss potential UN membership.
1971
March 1: Alex Douglas Hume, Conservative foreign secretary confirms that Britain will leave the Gulf and “strongly supports” the creation of a Union of Arab Emirates.
July 12: Historic meeting at which Sheikh Zayed and Sheikh Rashid make a binding agreement to create what will become the UAE.
July 18: It is announced that the UAE will be formed from six emirates, with a proposed constitution signed. RAK is not yet part of the agreement.
August 6: The fifth anniversary of Sheikh Zayed becoming Ruler of Abu Dhabi, with official celebrations deferred until later in the year.
August 15: Bahrain becomes independent.
September 3: Qatar becomes independent.
November 23-25: Meeting with Sheikh Zayed and Sheikh Rashid and senior British officials to fix December 2 as date of creation of the UAE.
November 29: At 5.30pm Iranian forces seize the Greater and Lesser Tunbs by force.
November 30: Despite a power sharing agreement, Tehran takes full control of Abu Musa.
November 31: UK officials visit all six participating Emirates to formally end the Trucial States treaties
December 2: 11am, Dubai. New Supreme Council formally elects Sheikh Zayed as President. Treaty of Friendship signed with the UK. 11.30am. Flag raising ceremony at Union House and Al Manhal Palace in Abu Dhabi witnessed by Sheikh Khalifa, then Crown Prince of Abu Dhabi.
December 6: Arab League formally admits the UAE. The first British Ambassador presents his credentials to Sheikh Zayed.
December 9: UAE joins the United Nations.
How to apply for a drone permit
- Individuals must register on UAE Drone app or website using their UAE Pass
- Add all their personal details, including name, nationality, passport number, Emiratis ID, email and phone number
- Upload the training certificate from a centre accredited by the GCAA
- Submit their request
What are the regulations?
- Fly it within visual line of sight
- Never over populated areas
- Ensure maximum flying height of 400 feet (122 metres) above ground level is not crossed
- Users must avoid flying over restricted areas listed on the UAE Drone app
- Only fly the drone during the day, and never at night
- Should have a live feed of the drone flight
- Drones must weigh 5 kg or less
Jetour T1 specs
Engine: 2-litre turbocharged
Power: 254hp
Torque: 390Nm
Price: From Dh126,000
Available: Now
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Mina Al-Oraibi: Iraq is in a fight to show its people who is really in charge
Khaled Yacoub Oweis: Iraq PM goes from shy writer to the political peak
The National Editorial: Iran's 'failed model' should be discontinued
The burning issue
The internal combustion engine is facing a watershed moment – major manufacturer Volvo is to stop producing petroleum-powered vehicles by 2021 and countries in Europe, including the UK, have vowed to ban their sale before 2040. The National takes a look at the story of one of the most successful technologies of the last 100 years and how it has impacted life in the UAE.
Part three: an affection for classic cars lives on
Read part two: how climate change drove the race for an alternative
Read part one: how cars came to the UAE
MOUNTAINHEAD REVIEW
Starring: Ramy Youssef, Steve Carell, Jason Schwartzman
Director: Jesse Armstrong
Rating: 3.5/5
While you're here
Damien McElroy: It's too early to say who will win the vaccine hurdle race
Mustafa Alrawi: To get the 'jab' done, governments must show patience and empathy
Editorial: The fight against Covid-19 should be guided by science
ALRAWABI%20SCHOOL%20FOR%20GIRLS
While you're here
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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
Miguel Cotto world titles:
WBO Light Welterweight champion - 2004-06
WBA Welterweight champion – 2006-08
WBO Welterweight champion – Feb 2009-Nov 2009
WBA Light Middleweight champion – 2010-12
WBC Middleweight champion – 2014-15
WBO Light Middleweight champion – Aug 2017-Dec 2017
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.”
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The Porpoise
By Mark Haddon
(Penguin Random House)
While you're here
Chitrabhanu Kadalayil: Singapore election is more than just a family feud over LKY's legacy
Sholto Byrnes: Robert Mugabe and Lee Kuan Yew: two leaders with very different legacies
Dr Vivian Balakrishnan: UAE and Singapore can be partners for a world in transition
Nick March: Singapore and UAE are on the move – in airport development
Emergency
Director: Kangana Ranaut
Stars: Kangana Ranaut, Anupam Kher, Shreyas Talpade, Milind Soman, Mahima Chaudhry
Rating: 2/5
