A colossal cosmic explosion that took place nearly 8 billion light-years away is the largest ever witnessed, astronomers said on Friday.
Scientists think the blast could have been caused by a cloud of mostly hydrogen gas many times bigger than the sun being sucked into a supermassive black hole.
The gas being swallowed is thought to have sent shock waves through the remaining gas, causing an explosion 10 times brighter than an exploding star, called a supernova.
Although first spotted in 2020 by a facility in California, the scale of the explosion, called AT2021lwx, was previously unknown.
It took place when the universe was about six billion years old.
Scientists from the University of Southampton in the UK used a selection of telescopes run by European nations and Nasa to view and measure the size of the blast.
They concluded it to be the largest on record, having lasted more than three years. Most supernovae are only visibly bright for a few months.
Their study was published in the Monthly Notices of the Royal Astronomical Society on Friday.
“We came upon this by chance, as it was flagged by our search algorithm when we were searching for a type of supernova,” said research leader Philip Wiseman, research fellow at the University of Southampton.
“Most supernovae and tidal disruption events only last for a couple of months before fading away. For something to be bright for two-plus years was immediately very unusual.”
How was the blast measured?
Measuring the size of an explosion occurring so far away is not as easy as just getting out the ruler.
The team had to analyse the spectrum of light emitted from the blast in great detail to work out distances.
“Once you know the distance to the object and how bright it appears to us, you can calculate the brightness of the object at its source,” said Sebastian Hoenig of the University of Southampton, a co-author of the research.
“Once we’d performed those calculations, we realised this is extremely bright,”
There is so much more to be measured about the blast, including temperature,
Emerging technology may also help the team to test their theory on the causes behind AT2021lwx.
“It could be that these events, although extremely rare, are so energetic that they are key processes to how the centres of galaxies change over time.”
Thor: Ragnarok
Dir: Taika Waititi
Starring: Chris Hemsworth, Tom Hiddleston, Cate Blanchett, Jeff Goldblum, Mark Ruffalo, Tessa Thompson
Four stars
Liverpool's all-time goalscorers
Ian Rush 346
Roger Hunt 285
Mohamed Salah 250
Gordon Hodgson 241
Billy Liddell 228
Abu Dhabi racecard
5pm: Maiden (Purebred Arabians); Dh80,000; 1,400m.
5.30pm: Maiden (PA); Dh80,00; 1,400m.
6pm: Sheikh Zayed bin Sultan Al Nahyan National Day Cup (PA); Group 3; Dh500,000; 1,600m.
6.30pm: Sheikh Zayed bin Sultan Al Nahyan National Day Cup (Thoroughbred); Listed; Dh380,000; 1,600m
7pm: Wathba Stallions Cup for Private Owners Handicap (PA); Dh70,000; 1,400m.
7.30pm: Handicap (PA); Dh80,000; 1,600m
Pharaoh's curse
British aristocrat Lord Carnarvon, who funded the expedition to find the Tutankhamun tomb, died in a Cairo hotel four months after the crypt was opened.
He had been in poor health for many years after a car crash, and a mosquito bite made worse by a shaving cut led to blood poisoning and pneumonia.
Reports at the time said Lord Carnarvon suffered from “pain as the inflammation affected the nasal passages and eyes”.
Decades later, scientists contended he had died of aspergillosis after inhaling spores of the fungus aspergillus in the tomb, which can lie dormant for months. The fact several others who entered were also found dead withiin a short time led to the myth of the curse.
The biog
Nickname: Mama Nadia to children, staff and parents
Education: Bachelors degree in English Literature with Social work from UAE University
As a child: Kept sweets on the window sill for workers, set aside money to pay for education of needy families
Holidays: Spends most of her days off at Senses often with her family who describe the centre as part of their life too
Last 10 NBA champions
2017: Golden State bt Cleveland 4-1
2016: Cleveland bt Golden State 4-3
2015: Golden State bt Cleveland 4-2
2014: San Antonio bt Miami 4-1
2013: Miami bt San Antonio 4-3
2012: Miami bt Oklahoma City 4-1
2011: Dallas bt Miami 4-2
2010: Los Angeles Lakers bt Boston 4-3
2009: Los Angeles Lakers bt Orlando 4-1
2008: Boston bt Los Angeles Lakers 4-2
Ferrari 12Cilindri specs
Engine: naturally aspirated 6.5-liter V12
Power: 819hp
Torque: 678Nm at 7,250rpm
Price: From Dh1,700,000
Available: Now
Book%20Details
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SRI LANKS ODI SQUAD
Perera (capt), Mendis, Gunathilaka, de Silva, Nissanka, Shanaka, Bandara, Hasaranga, Udana, Dananjaya, Dickwella, Chameera, Mendis, Fernando, Sandakan, Karunaratne, Fernando, Fernando.
Graduated from the American University of Sharjah
She is the eldest of three brothers and two sisters
Has helped solve 15 cases of electric shocks
Enjoys travelling, reading and horse riding
Read more from Aya Iskandarani
TRAP
Starring: Josh Hartnett, Saleka Shyamalan, Ariel Donaghue
Director: M Night Shyamalan
Rating: 3/5
Ads on social media can 'normalise' drugs
A UK report on youth social media habits commissioned by advocacy group Volteface found a quarter of young people were exposed to illegal drug dealers on social media.
The poll of 2,006 people aged 16-24 assessed their exposure to drug dealers online in a nationally representative survey.
Of those admitting to seeing drugs for sale online, 56 per cent saw them advertised on Snapchat, 55 per cent on Instagram and 47 per cent on Facebook.
Cannabis was the drug most pushed by online dealers, with 63 per cent of survey respondents claiming to have seen adverts on social media for the drug, followed by cocaine (26 per cent) and MDMA/ecstasy, with 24 per cent of people.
RESULT
Esperance de Tunis 1 Guadalajara 1
(Esperance won 6-5 on penalties)
Esperance: Belaili 38’
Guadalajara: Sandoval 5’
The specs: Fenyr SuperSport
Price, base: Dh5.1 million
Engine: 3.8-litre twin-turbo flat-six
Transmission: Seven-speed automatic
Power: 800hp @ 7,100pm
Torque: 980Nm @ 4,000rpm
Fuel economy, combined: 13.5L / 100km
Killing of Qassem Suleimani
Concrete and Gold
Foo Fighters
RCA records
Kanguva
Director: Siva
Stars: Suriya, Bobby Deol, Disha Patani, Yogi Babu, Redin Kingsley
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Other acts on the Jazz Garden bill
Sharrie Williams
The American singer is hugely respected in blues circles due to her passionate vocals and songwriting. Born and raised in Michigan, Williams began recording and touring as a teenage gospel singer. Her career took off with the blues band The Wiseguys. Such was the acclaim of their live shows that they toured throughout Europe and in Africa. As a solo artist, Williams has also collaborated with the likes of the late Dizzy Gillespie, Van Morrison and Mavis Staples.
Lin Rountree
An accomplished smooth jazz artist who blends his chilled approach with R‘n’B. Trained at the Duke Ellington School of the Arts in Washington, DC, Rountree formed his own band in 2004. He has also recorded with the likes of Kem, Dwele and Conya Doss. He comes to Dubai on the back of his new single Pass The Groove, from his forthcoming 2018 album Stronger Still, which may follow his five previous solo albums in cracking the top 10 of the US jazz charts.
Anita Williams
Dubai-based singer Anita Williams will open the night with a set of covers and swing, jazz and blues standards that made her an in-demand singer across the emirate. The Irish singer has been performing in Dubai since 2008 at venues such as MusicHall and Voda Bar. Her Jazz Garden appearance is career highlight as she will use the event to perform the original song Big Blue Eyes, the single from her debut solo album, due for release soon.
Springsteen: Deliver Me from Nowhere
Director: Scott Cooper
Starring: Jeremy Allen White, Odessa Young, Jeremy Strong
Rating: 4/5
UAE currency: the story behind the money in your pockets
Brief scoreline:
Manchester United 2
Rashford 28', Martial 72'
Watford 1
Doucoure 90'
Joy%20Ride%20
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Teams
Punjabi Legends Owners: Inzamam-ul-Haq and Intizar-ul-Haq; Key player: Misbah-ul-Haq
Pakhtoons Owners: Habib Khan and Tajuddin Khan; Key player: Shahid Afridi
Maratha Arabians Owners: Sohail Khan, Ali Tumbi, Parvez Khan; Key player: Virender Sehwag
Bangla Tigers Owners: Shirajuddin Alam, Yasin Choudhary, Neelesh Bhatnager, Anis and Rizwan Sajan; Key player: TBC
Colombo Lions Owners: Sri Lanka Cricket; Key player: TBC
Kerala Kings Owners: Hussain Adam Ali and Shafi Ul Mulk; Key player: Eoin Morgan
Venue Sharjah Cricket Stadium
Format 10 overs per side, matches last for 90 minutes
Timeline October 25: Around 120 players to be entered into a draft, to be held in Dubai; December 21: Matches start; December 24: Finals
SPECS
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THE BIO
Born: Mukalla, Yemen, 1979
Education: UAE University, Al Ain
Family: Married with two daughters: Asayel, 7, and Sara, 6
Favourite piece of music: Horse Dance by Naseer Shamma
Favourite book: Science and geology
Favourite place to travel to: Washington DC
Best advice you’ve ever been given: If you have a dream, you have to believe it, then you will see it.
