Scientists on Thursday provided the first look at the monster lurking at the centre of our Milky Way galaxy, in an image of a supermassive black hole that devours any matter wandering within its enormous gravitational pull.
Their image of Sagittarius A*, or SgrA*, is only the second ever taken of a black hole.
The feat was accomplished by the same Event Horizon Telescope international collaboration that in 2019 unveiled the first photo of a black hole, which is at the centre of a different galaxy.
Sagittarius A* has four million times the mass of our Sun and is about 26,000 light years from Earth. A light year is the distance light travels in a year, or 9.5 trillion kilometres.
We must peer through the messy disc of our own galaxy to view Sgr A*, which blurs and distorts the image
Lindy Blackburn,
Harvard-Smithsonian Centre for Astrophysics
Black holes are extraordinarily dense objects with gravity so strong that not even light can escape, which makes finding them challenging.
A black hole's event horizon is the point of no return beyond which anything — stars, planets, gas, dust and all forms of electromagnetic radiation — is dragged into oblivion.
Project scientists have looked for a ring of light around a region of darkness representing the black hole. It is super-heated disrupted matter and radiation circling at tremendous speed at the edge of the event horizon, and is known as the black hole's shadow or silhouette.
The Milky Way is a spiral galaxy that contains at least 100 billion stars. Viewed from above or below it resembles a spinning pinwheel, with our Sun on one of the arms and Sagittarius A* at the centre.
The image released in 2019 of the supermassive black hole in a galaxy called Messier 87, or M87, showed a glowing ring of red, yellow and white surrounding a dark centre.
The M87 black hole is far more distant and massive than Sagittarius A*. It is about 54 million light years from Earth and has a mass 6.5 billion times that of our Sun.
The researchers said that the image of Sagittarius A*, despite it being much closer to our solar system than M87, was harder to take.
The diameter of Sagittarius A* is about 17 times that of the sun, meaning it would be within the innermost planet Mercury's solar orbit. In contrast, M87's diametre would encompass the entirety of our solar system.
"Sagittarius A* is over 1,000 less massive than the black hole at M87," said radio astronomer Lindy Blackburn, an EHT data scientist at the Harvard-Smithsonian Centre for Astrophysics.
"But since it is in our own galaxy it is much closer, and should appear just slightly larger on the sky.
"However, the smaller physical size of Sgr A* also means that everything changes about a thousand times faster for Sgr A* than M87.
"We must also peer through the messy disc of our own galaxy to view Sgr A*, which blurs and distorts the image."
The Event Horizon Telescope is a global network of observatories collaborating to observe radio sources associated with black holes. The project was begun in 2012 to try to directly observe the immediate environment of a black hole.
There are different categories of black holes. The smallest are so-called stellar-mass black holes formed by the collapse of massive stars at the ends of their life cycles.
There also are intermediate-mass black holes, which have larger mass. And finally there are the supermassive black holes that inhabit the centre of most galaxies.
These are thought to arise relatively soon after their galaxies are formed, devouring enormous amounts of material to achieve colossal size.
Thursday's announcement was made simultaneously in the US, Germany, China, Mexico, Chile, Japan and Taiwan.
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%3Cp%3EEncourage%20innovation%20in%20the%20metaverse%20field%20and%20boost%20economic%20contribution%3C%2Fp%3E%0A%3Cp%3EDevelop%20outstanding%20talents%20through%20education%20and%20training%3C%2Fp%3E%0A%3Cp%3EDevelop%20applications%20and%20the%20way%20they%20are%20used%20in%20Dubai's%20government%20institutions%3C%2Fp%3E%0A%3Cp%3EAdopt%2C%20expand%20and%20promote%20secure%20platforms%20globally%3C%2Fp%3E%0A%3Cp%3EDevelop%20the%20infrastructure%20and%20regulations%3C%2Fp%3E%0A
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
Formula Middle East Calendar (Formula Regional and Formula 4)
Round 1: January 17-19, Yas Marina Circuit – Abu Dhabi
Round 2: January 22-23, Yas Marina Circuit – Abu Dhabi
Round 3: February 7-9, Dubai Autodrome – Dubai
Round 4: February 14-16, Yas Marina Circuit – Abu Dhabi
Round 5: February 25-27, Jeddah Corniche Circuit – Saudi Arabia
Three ways to boost your credit score
Marwan Lutfi says the core fundamentals that drive better payment behaviour and can improve your credit score are:
1. Make sure you make your payments on time;
2. Limit the number of products you borrow on: the more loans and credit cards you have, the more it will affect your credit score;
3. Don't max out all your debts: how much you maximise those credit facilities will have an impact. If you have five credit cards and utilise 90 per cent of that credit, it will negatively affect your score.
From Zero
Artist: Linkin Park
Label: Warner Records
Number of tracks: 11
Rating: 4/5
Tips for avoiding trouble online
- Do not post incorrect information and beware of fake news
- Do not publish or repost racist or hate speech, yours or anyone else’s
- Do not incite violence and be careful how to phrase what you want to say
- Do not defame anyone. Have a difference of opinion with someone? Don’t attack them on social media
- Do not forget your children and monitor their online activities
COMPANY PROFILE
Company name: BorrowMe (BorrowMe.com)
Date started: August 2021
Founder: Nour Sabri
Based: Dubai, UAE
Sector: E-commerce / Marketplace
Size: Two employees
Funding stage: Seed investment
Initial investment: $200,000
Investors: Amr Manaa (director, PwC Middle East)
Results
5pm: Maiden (PA) Dh80,000 (Turf) 1,600m; Winner: Aahid Al Khalediah II, Pat Cosgrave (jockey), Helal Al Alawi (trainer)
5.30pm: Handicap (PA) Dh80,000 (T) 2,200m; Winner: Whistle, Harry Bentley, Abdallah Al Hammadi
6pm: Wathba Stallions Cup - Maiden (PA) Dh70,000 (T) 1,600m; Winner: Alsaied, Szczepan Mazur, Ibrahim Al Hadhrami
6.30pm: Emirates Fillies Classic – Prestige (PA) Dh100,000 (T) 1,600m; Winner: Mumayaza, Antonio Fresu, Eric Lemartinel
7pm: Emirates Colts Classic – Prestige (PA) Dh100,000 (T) 1,600m; Winner: Hameem, Adrie de Vries, Abdallah Al Hammadi
7.30pm: President’s Cup – Group 1 (PA) Dh2,500,000 (T) 2,200m; Winner: Somoud, Richard Mullen, Jean de Roualle
8pm: President’s Cup – Listed (TB) Dh380,000 (T) 1,400m; Winner: Medahim, Richard Mullen, Satish Seemar
Jetour T1 specs
Engine: 2-litre turbocharged
Power: 254hp
Torque: 390Nm
Price: From Dh126,000
Available: Now
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%3Cp%3E%3Cstrong%3EProcessor%3A%3C%2Fstrong%3E%20Apple%20M3%2C%208-core%20CPU%2C%20up%20to%2010-core%20CPU%2C%2016-core%20Neural%20Engine%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EDisplay%3A%3C%2Fstrong%3E%2013.6-inch%20Liquid%20Retina%2C%202560%20x%201664%2C%20224ppi%2C%20500%20nits%2C%20True%20Tone%2C%20wide%20colour%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EMemory%3A%3C%2Fstrong%3E%208%2F16%2F24GB%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EStorage%3A%3C%2Fstrong%3E%20256%2F512GB%20%2F%201%2F2TB%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EI%2FO%3A%3C%2Fstrong%3E%20Thunderbolt%203%2FUSB-4%20(2)%2C%203.5mm%20audio%2C%20Touch%20ID%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EConnectivity%3A%3C%2Fstrong%3E%20Wi-Fi%206E%2C%20Bluetooth%205.3%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EBattery%3A%3C%2Fstrong%3E%2052.6Wh%20lithium-polymer%2C%20up%20to%2018%20hours%2C%20MagSafe%20charging%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3ECamera%3A%3C%2Fstrong%3E%201080p%20FaceTime%20HD%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EVideo%3A%3C%2Fstrong%3E%20Support%20for%20Apple%20ProRes%2C%20HDR%20with%20Dolby%20Vision%2C%20HDR10%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EAudio%3A%3C%2Fstrong%3E%204-speaker%20system%2C%20wide%20stereo%2C%20support%20for%20Dolby%20Atmos%2C%20Spatial%20Audio%20and%20dynamic%20head%20tracking%20(with%20AirPods)%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EColours%3A%3C%2Fstrong%3E%20Midnight%2C%20silver%2C%20space%20grey%2C%20starlight%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EIn%20the%20box%3A%3C%2Fstrong%3E%20MacBook%20Air%2C%2030W%2F35W%20dual-port%2F70w%20power%20adapter%2C%20USB-C-to-MagSafe%20cable%2C%202%20Apple%20stickers%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EPrice%3A%3C%2Fstrong%3E%20From%20Dh4%2C599%3C%2Fp%3E%0A
The National Archives, Abu Dhabi
Founded over 50 years ago, the National Archives collects valuable historical material relating to the UAE, and is the oldest and richest archive relating to the Arabian Gulf.
Much of the material can be viewed on line at the Arabian Gulf Digital Archive - https://www.agda.ae/en
EA Sports FC 26
Publisher: EA Sports
Consoles: PC, PlayStation 4/5, Xbox Series X/S
Rating: 3/5
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Who are the Sacklers?
The Sackler family is a transatlantic dynasty that owns Purdue Pharma, which manufactures and markets OxyContin, one of the drugs at the centre of America's opioids crisis. The family is well known for their generous philanthropy towards the world's top cultural institutions, including Guggenheim Museum, the National Portrait Gallery, Tate in Britain, Yale University and the Serpentine Gallery, to name a few. Two branches of the family control Purdue Pharma.
Isaac Sackler and Sophie Greenberg were Jewish immigrants who arrived in New York before the First World War. They had three sons. The first, Arthur, died before OxyContin was invented. The second, Mortimer, who died aged 93 in 2010, was a former chief executive of Purdue Pharma. The third, Raymond, died aged 97 in 2017 and was also a former chief executive of Purdue Pharma.
It was Arthur, a psychiatrist and pharmaceutical marketeer, who started the family business dynasty. He and his brothers bought a small company called Purdue Frederick; among their first products were laxatives and prescription earwax remover.
Arthur's branch of the family has not been involved in Purdue for many years and his daughter, Elizabeth, has spoken out against it, saying the company's role in America's drugs crisis is "morally abhorrent".
The lawsuits that were brought by the attorneys general of New York and Massachussetts named eight Sacklers. This includes Kathe, Mortimer, Richard, Jonathan and Ilene Sackler Lefcourt, who are all the children of either Mortimer or Raymond. Then there's Theresa Sackler, who is Mortimer senior's widow; Beverly, Raymond's widow; and David Sackler, Raymond's grandson.
Members of the Sackler family are rarely seen in public.
Manchester United v Club America
When: Thursday, 9pm Arizona time (Friday UAE, 8am)
UAE jiu-jitsu squad
Men: Hamad Nawad and Khalid Al Balushi (56kg), Omar Al Fadhli and Saeed Al Mazroui (62kg), Taleb Al Kirbi and Humaid Al Kaabi (69kg), Mohammed Al Qubaisi and Saud Al Hammadi (70kg), Khalfan Belhol and Mohammad Haitham Radhi (85kg), Faisal Al Ketbi and Zayed Al Kaabi (94kg)
Women: Wadima Al Yafei and Mahra Al Hanaei (49kg), Bashayer Al Matrooshi and Hessa Al Shamsi (62kg)
Director: Laxman Utekar
Cast: Vicky Kaushal, Akshaye Khanna, Diana Penty, Vineet Kumar Singh, Rashmika Mandanna
Rating: 1/5
MATCH INFO
Leeds United 0
Brighton 1 (Maupay 17')
Man of the match: Ben White (Brighton)
The stats: 2017 Jaguar XJ
Price, base / as tested Dh326,700 / Dh342,700
Engine 3.0L V6
Transmission Eight-speed automatic
Power 340hp @ 6,000pm
Torque 450Nm @ 3,500rpm
Fuel economy, combined 9.1L / 100km
Name: Colm McLoughlin
Country: Galway, Ireland
Job: Executive vice chairman and chief executive of Dubai Duty Free
Favourite golf course: Dubai Creek Golf and Yacht Club
Favourite part of Dubai: Palm Jumeirah
Scorecard:
England 458 & 119/1 (51.0 ov)
South Africa 361
England lead by 216 runs with 9 wickets remaining
BIOSAFETY LABS SECURITY LEVELS
Biosafety Level 1
The lowest safety level. These labs work with viruses that are minimal risk to humans.
Hand washing is required on entry and exit and potentially infectious material decontaminated with bleach before thrown away.
Must have a lock. Access limited. Lab does not need to be isolated from other buildings.
Used as teaching spaces.
Study microorganisms such as Staphylococcus which causes food poisoning.
Biosafety Level 2
These labs deal with pathogens that can be harmful to people and the environment such as Hepatitis, HIV and salmonella.
Working in Level 2 requires special training in handling pathogenic agents.
Extra safety and security precautions are taken in addition to those at Level 1
Biosafety Level 3
These labs contain material that can be lethal if inhaled. This includes SARS coronavirus, MERS, and yellow fever.
Significant extra precautions are taken with staff given specific immunisations when dealing with certain diseases.
Infectious material is examined in a biological safety cabinet.
Personnel must wear protective gowns that must be discarded or decontaminated after use.
Strict safety and handling procedures are in place. There must be double entrances to the building and they must contain self-closing doors to reduce risk of pathogen aerosols escaping.
Windows must be sealed. Air from must be filtered before it can be recirculated.
Biosafety Level 4
The highest level for biosafety precautions. Scientist work with highly dangerous diseases that have no vaccine or cure.
All material must be decontaminated.
Personnel must wear a positive pressure suit for protection. On leaving the lab this must pass through decontamination shower before they have a personal shower.
Entry is severely restricted to trained and authorised personnel. All entries are recorded.
Entrance must be via airlocks.
Mica
Director: Ismael Ferroukhi
Stars: Zakaria Inan, Sabrina Ouazani
3 stars
COMPANY PROFILE
Name: Kumulus Water
Started: 2021
Founders: Iheb Triki and Mohamed Ali Abid
Based: Tunisia
Sector: Water technology
Number of staff: 22
Investment raised: $4 million
Company Fact Box
Company name/date started: Abwaab Technologies / September 2019
Founders: Hamdi Tabbaa, co-founder and CEO. Hussein Alsarabi, co-founder and CTO
Based: Amman, Jordan
Sector: Education Technology
Size (employees/revenue): Total team size: 65. Full-time employees: 25. Revenue undisclosed
Stage: early-stage startup
Investors: Adam Tech Ventures, Endure Capital, Equitrust, the World Bank-backed Innovative Startups SMEs Fund, a London investment fund, a number of former and current executives from Uber and Netflix, among others.
