Astronomers have uncovered the feeding schedule of a supermassive black hole, revealing that it consumes material about every three and a half years.
This discovery provides critical insights into the behaviour of these mysterious cosmic forces, deepening scientists’ understanding of the powerful formations that shape the universe.
A team of astronomers used three space telescopes to make these observations, including Nasa’s Chandra X-ray Observatory, with findings published in The Astrophysical Journal Letters on Wednesday.
The subject of this study was a supermassive black hole located at the centre of a galaxy about 860 million light-years from Earth.
With a mass of about 50 million times that of the Sun, this black hole was observed engaging in an interaction with a star that ventured too close to its immense gravitational pull.
Astronomers first noticed the black hole's activity when the galaxy it resides in experienced a significant increase in brightness in 2018.
They identified this as a tidal disruption event, which occurs when a star is torn apart by the intense gravitational forces of a black hole.
As the star was pulled apart, its material heated up, producing X-ray and ultraviolet light that was observed by the telescopes.
This emission eventually faded, suggesting that the black hole had consumed the matter.
However, astronomers were surprised when, about two years later, the X-ray and UV light from the galaxy flared up again.
This unexpected resurgence suggested that the star had been only partially consumed during its first encounter, with more material being stripped away as it neared the black hole again.
“Initially, we thought this was a garden-variety case of a black hole totally ripping a star apart,” said Thomas Wevers from the Space Telescope Science Institute in Baltimore.
“But instead, the star appears to be living to die another day.”
Going into orbit
The astronomers learnt that after the first encounter, the star moved into a highly elongated orbit around the black hole.
When it eventually approached the black hole again, the galaxy lit up with X-ray and UV light as more of the star’s material was consumed.
This discovery allowed the scientists to calculate the star's orbital period, helping them to learn that the black hole consumes material approximately every three and a half years.
The most recent event, which concluded in August last year, was timed by researchers using Chandra observations to confirm the exact moment when the black hole had finished devouring the star.
“The telltale sign of this stellar snack ending was a sudden drop in the X-rays, and that's exactly what we saw in our Chandra observations,” said Dheeraj Pasham of the Massachusetts Institute of Technology.
“In August last year, the black hole was essentially wiping its mouth and pushing back from the table.”
The team predicts that the black hole's next encounter with the star will begin between May and August 2025, although it is expected to be smaller, as the star has mostly already been ripped to shreds.
The fate of the star probably began when it was part of a binary system, orbiting closely with a companion star. As the pair approached the black hole, the intense gravitational forces tore them apart, sending one star hurtling into space while the other was captured in a death spiral around the black hole.
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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.
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Uefa Champions League semi-final, second leg result:
Ajax 2-3 Tottenham
Tottenham advance on away goals rule after tie ends 3-3 on aggregate
Final: June 1, Madrid
The five pillars of Islam
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How to protect yourself when air quality drops
Install an air filter in your home.
Close your windows and turn on the AC.
Shower or bath after being outside.
Wear a face mask.
Stay indoors when conditions are particularly poor.
If driving, turn your engine off when stationary.
THE CLOWN OF GAZA
Director: Abdulrahman Sabbah
Starring: Alaa Meqdad
Rating: 4/5
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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”
Desert Warrior
Starring: Anthony Mackie, Aiysha Hart, Ben Kingsley
Director: Rupert Wyatt
Rating: 3/5
UAE currency: the story behind the money in your pockets
Results:
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UK’s AI plan
- AI ambassadors such as MIT economist Simon Johnson, Monzo cofounder Tom Blomfield and Google DeepMind’s Raia Hadsell
- £10bn AI growth zone in South Wales to create 5,000 jobs
- £100m of government support for startups building AI hardware products
- £250m to train new AI models
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Uefa Champions League semi-final, second leg
Real Madrid (2) v Bayern Munich (1)
Where: Santiago Bernabeu, Madrid
When: 10.45pm, Tuesday
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Tips for newlyweds to better manage finances
All couples are unique and have to create a financial blueprint that is most suitable for their relationship, says Vijay Valecha, chief investment officer at Century Financial. He offers his top five tips for couples to better manage their finances.
Discuss your assets and debts: When married, it’s important to understand each other’s personal financial situation. It’s necessary to know upfront what each party brings to the table, as debts and assets affect spending habits and joint loan qualifications. Discussing all aspects of their finances as a couple prevents anyone from being blindsided later.
Decide on the financial/saving goals: Spouses should independently list their top goals and share their lists with one another to shape a joint plan. Writing down clear goals will help them determine how much to save each month, how much to put aside for short-term goals, and how they will reach their long-term financial goals.
Set a budget: A budget can keep the couple be mindful of their income and expenses. With a monthly budget, couples will know exactly how much they can spend in a category each month, how much they have to work with and what spending areas need to be evaluated.
Decide who manages what: When it comes to handling finances, it’s a good idea to decide who manages what. For example, one person might take on the day-to-day bills, while the other tackles long-term investments and retirement plans.
Money date nights: Talking about money should be a healthy, ongoing conversation and couples should not wait for something to go wrong. They should set time aside every month to talk about future financial decisions and see the progress they’ve made together towards accomplishing their goals.
Islamophobia definition
A widely accepted definition was made by the All Party Parliamentary Group on British Muslims in 2019: “Islamophobia is rooted in racism and is a type of racism that targets expressions of Muslimness or perceived Muslimness.” It further defines it as “inciting hatred or violence against Muslims”.
The bio
Favourite book: Peter Rabbit. I used to read it to my three children and still read it myself. If I am feeling down it brings back good memories.
Best thing about your job: Getting to help people. My mum always told me never to pass up an opportunity to do a good deed.
Best part of life in the UAE: The weather. The constant sunshine is amazing and there is always something to do, you have so many options when it comes to how to spend your day.
Favourite holiday destination: Malaysia. I went there for my honeymoon and ended up volunteering to teach local children for a few hours each day. It is such a special place and I plan to retire there one day.
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Our legal columnist
Name: Yousef Al Bahar
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Emergency phone numbers in the UAE
Estijaba – 8001717 – number to call to request coronavirus testing
Ministry of Health and Prevention – 80011111
Dubai Health Authority – 800342 – The number to book a free video or voice consultation with a doctor or connect to a local health centre
Emirates airline – 600555555
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Knowledge and Human Development Authority – 8005432 ext. 4 for Covid-19 queries