A network of Australian observatories has successfully received laser signals from a German satellite in low Earth orbit, paving the way for much faster communication speeds from space.
The University of Western Australia’s three TeraNet observatories – one of which is mobile and mounted on the back of a lorry – use lasers to transfer data between satellites in space and users on Earth, instead of traditional radio signals.
Radio signals have been used to communicate from space since the launch of the first satellite, Sputnik 1, nearly 70 years ago.
But as the number of satellites in space has grown, with each capable of generating more data, there is now a critical bottleneck in sending data back to Earth.
Lasers can help solve that problem. Because they operate at much higher frequencies than radio waves, they can transfer data at thousands of gigabits per second, meaning they pack more information into every second – paving the way for a 1,000-fold increase in communication bandwidth between space and Earth.
“This demonstration is the critical first step in establishing a next-generation space communications network across Western Australia. The next steps include joining this network to other optical ground stations currently being developed in Australia and across the world,” said associate professor Sascha Schediwy from UWA, who leads the TeraNet team.
Laser communication can offer greater bandwidth but it also has drawbacks, because its signals can be interrupted by cloud and rain.
The TeraNet team has created a workaround by establishing a network of three ground stations across the state of Western Australia, meaning if it is cloudy at one site, the satellite can download its data to another which has clearer skies above.
One of the observatories that received the satellite laser signal is built on the back of a custom-built Jeep, so it can be quickly deployed to sites that need ultra-fast space communications, including communities where traditional communications links have been cut off due to natural disasters.
Experts say high-speed laser communication from space will also improve and secure military communication networks, and bolster secure remote operations for sectors such as autonomous mining operations, as well as national disaster planning and responses.
TeraNet will support numerous international space missions operating between low Earth orbit and the Moon, using proven conventional optical communications standards and more advanced optical technology.
The network comprises one ground station at UWA in Perth, another at the Mingenew Space Precinct 300km north of Perth and a mobile hub that is being commissioned at the European Space Agency’s New Norcia site.
Kessler effect
In the late 1970s, during the space race between the United States and the USSR, when an increasing number of satellites were being sent into orbit, scientist Don Kessler warned that the amount of space junk could become so great that collisions would become inevitable.
A chain reaction would be created, causing even more collisions, making it impossible to navigate any spacecraft or equipment, he said. At the time, he estimated the scenario, known as the Kessler effect, would take three or four decades to become a reality.
Space defence experts now fear the possibility of rogue states or groups causing worldwide chaos by using such a scenario to bring down hundreds of satellites.
There are around 2,666 satellites orbiting the Earth, with thousands more tiny bits of debris that could trigger a catastrophic collision.
Currently one satellite a year is destroyed in collisions with space junk, with a one-kilogram piece of debris having the mass to destroy a spacecraft. In Kessler's theory the fragments from this could then hit other satellites with the resulting cascade of disintegration causing massive destruction.
Experts have suggested one solution may be to recycle space debris, using parts and material from decommissioned satellites and debris into useful materials to support other space missions.
EA Sports FC 26
Publisher: EA Sports
Consoles: PC, PlayStation 4/5, Xbox Series X/S
Rating: 3/5
The winners
Fiction
- ‘Amreekiya’ by Lena Mahmoud
- ‘As Good As True’ by Cheryl Reid
The Evelyn Shakir Non-Fiction Award
- ‘Syrian and Lebanese Patricios in Sao Paulo’ by Oswaldo Truzzi; translated by Ramon J Stern
- ‘The Sound of Listening’ by Philip Metres
The George Ellenbogen Poetry Award
- ‘Footnotes in the Order of Disappearance’ by Fady Joudah
Children/Young Adult
- ‘I’ve Loved You Since Forever’ by Hoda Kotb
Essentials
The flights
Whether you trek after mountain gorillas in Rwanda, Uganda or the Congo, the most convenient international airport is in Rwanda’s capital city, Kigali. There are direct flights from Dubai a couple of days a week with RwandAir. Otherwise, an indirect route is available via Nairobi with Kenya Airways. Flydubai flies to Kinshasa in the Democratic Republic of Congo, via Entebbe in Uganda. Expect to pay from US$350 (Dh1,286) return, including taxes.
The tours
Superb ape-watching tours that take in all three gorilla countries mentioned above are run by Natural World Safaris. In September, the company will be operating a unique Ugandan ape safari guided by well-known primatologist Ben Garrod.
In the Democratic Republic of Congo, local operator Kivu Travel can organise pretty much any kind of safari throughout the Virunga National Park and elsewhere in eastern Congo.
EMERGENCY PHONE NUMBERS
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
Etihad Airways – 600555666
Ambulance – 998
Knowledge and Human Development Authority – 8005432 ext. 4 for Covid-19 queries
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
Results
2pm: Handicap Dh 90,000 1,800m; Winner: Majestic Thunder, Tadhg O’Shea (jockey), Satish Seemar (trainer).
2.30pm: Handicap Dh120,000 1,950m; Winner: Just A Penny, Sam Hitchcott, Doug Watson.
3pm: Handicap Dh105,000 1,600m; Winner: Native Appeal, Pat Dobbs, Doug Watson.
3.30pm: Jebel Ali Classic Conditions Dh300,000 1,400m; Winner: Thegreatcollection, Adrie de Vries, Doug Watson.
4pm: Maiden Dh75,000 1,600m; Winner: Oktalgano, Xavier Ziani, Salem bin Ghadayer.
4.30pm: Conditions Dh250,000 1,400m; Winner: Madame Ellingtina, Richard Mullen, Satish Seemar.
5pm: Maiden Dh75,000 1,600m; Winner: Mystery Land, Fabrice Veron, Helal Al Alawi.
5.30pm: Handicap Dh85,000 1,000m; Winner: Shanaghai City, Jesus Rosales, Rashed Bouresly.
AUSTRALIA%20SQUAD
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Ibrahim's play list
Completed an electrical diploma at the Adnoc Technical Institute
Works as a public relations officer with Adnoc
Apart from the piano, he plays the accordion, oud and guitar
His favourite composer is Johann Sebastian Bach
Also enjoys listening to Mozart
Likes all genres of music including Arabic music and jazz
Enjoys rock groups Scorpions and Metallica
Other musicians he likes are Syrian-American pianist Malek Jandali and Lebanese oud player Rabih Abou Khalil
A%20MAN%20FROM%20MOTIHARI
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TECH%20SPECS%3A%20APPLE%20IPHONE%2014%20PLUS
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You Were Never Really Here
Director: Lynne Ramsay
Starring: Joaquim Phoenix, Ekaterina Samsonov
Four stars
What is the definition of an SME?
SMEs in the UAE are defined by the number of employees, annual turnover and sector. For example, a “small company” in the services industry has six to 50 employees with a turnover of more than Dh2 million up to Dh20m, while in the manufacturing industry the requirements are 10 to 100 employees with a turnover of more than Dh3m up to Dh50m, according to Dubai SME, an agency of the Department of Economic Development.
A “medium-sized company” can either have staff of 51 to 200 employees or 101 to 250 employees, and a turnover less than or equal to Dh200m or Dh250m, again depending on whether the business is in the trading, manufacturing or services sectors.
U19 WORLD CUP, WEST INDIES
UAE group fixtures (all in St Kitts)
- Saturday 15 January: UAE beat Canada by 49 runs
- Thursday 20 January: v England
- Saturday 22 January: v Bangladesh
UAE squad:
Alishan Sharafu (captain), Shival Bawa, Jash Giyanani, Sailles
Jaishankar, Nilansh Keswani, Aayan Khan, Punya Mehra, Ali Naseer, Ronak Panoly,
Dhruv Parashar, Vinayak Raghavan, Soorya Sathish, Aryansh Sharma, Adithya
Shetty, Kai Smith
Specs
Engine: Duel electric motors
Power: 659hp
Torque: 1075Nm
On sale: Available for pre-order now
Price: On request
RESULTS
1.45pm: Maiden Dh75,000 1,400m
Winner: Dirilis Ertugrul, Fabrice Veron (jockey), Ismail Mohammed (trainer)
2.15pm: Handicap Dh90,000 1,400m
Winner: Kidd Malibu, Sandro Paiva, Musabah Al Muhairi
2.45pm: Maiden Dh75,000 1,000m
Winner: Raakezz, Tadhg O’Shea, Nicholas Bachalard
3.15pm: Handicap Dh105,000 1,200m
Winner: Au Couer, Sean Kirrane, Satish Seemar
3.45pm: Maiden Dh75,000 1,600m
Winner: Rayig, Pat Dobbs, Doug Watson
4.15pm: Handicap Dh105,000 1,600m
Winner: Chiefdom, Royston Ffrench, Salem bin Ghadayer
4.45pm: Handicap Dh80,000 1,800m
Winner: King’s Shadow, Richard Mullen, Satish Seemar
Anghami
Started: December 2011
Co-founders: Elie Habib, Eddy Maroun
Based: Beirut and Dubai
Sector: Entertainment
Size: 85 employees
Stage: Series C
Investors: MEVP, du, Mobily, MBC, Samena Capital
New schools in Dubai
LIVING IN...
This article is part of a guide on where to live in the UAE. Our reporters will profile some of the country’s most desirable districts, provide an estimate of rental prices and introduce you to some of the residents who call each area home.
Titan Sports Academy:
Programmes: Judo, wrestling, kick-boxing, muay thai, taekwondo and various summer camps
Location: Inside Abu Dhabi City Golf Club, Al Mushrif, Abu Dhabi, UAE
Telephone: 971 50 220 0326
Company%20Profile
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What is tokenisation?
Tokenisation refers to the issuance of a blockchain token, which represents a virtually tradable real, tangible asset. A tokenised asset is easily transferable, offers good liquidity, returns and is easily traded on the secondary markets.
UPI facts
More than 2.2 million Indian tourists arrived in UAE in 2023
More than 3.5 million Indians reside in UAE
Indian tourists can make purchases in UAE using rupee accounts in India through QR-code-based UPI real-time payment systems
Indian residents in UAE can use their non-resident NRO and NRE accounts held in Indian banks linked to a UAE mobile number for UPI transactions
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)
The%20specs
%3Cp%3E%3Cstrong%3EEngine%3A%20%3C%2Fstrong%3ESingle%20front-axle%20electric%20motor%3Cbr%3E%3Cstrong%3EPower%3A%20%3C%2Fstrong%3E218hp%3Cbr%3E%3Cstrong%3ETorque%3A%20%3C%2Fstrong%3E330Nm%3Cbr%3E%3Cstrong%3ETransmission%3A%20%3C%2Fstrong%3ESingle-speed%20automatic%3Cbr%3E%3Cstrong%3EMax%20touring%20range%3A%20%3C%2Fstrong%3E402km%20(claimed)%3Cbr%3E%3Cstrong%3EPrice%3A%20%3C%2Fstrong%3EFrom%20Dh215%2C000%20(estimate)%3Cbr%3E%3Cstrong%3EOn%20sale%3A%20%3C%2Fstrong%3ESeptember%3C%2Fp%3E%0A
match info
Chelsea 2
Willian (13'), Ross Barkley (64')
Liverpool 0
Newcastle United 0 Tottenham Hotspur 2
Tottenham (Alli 61'), Davies (70')
Red card Jonjo Shelvey (Newcastle)
Tax authority targets shisha levy evasion
The Federal Tax Authority will track shisha imports with electronic markers to protect customers and ensure levies have been paid.
Khalid Ali Al Bustani, director of the tax authority, on Sunday said the move is to "prevent tax evasion and support the authority’s tax collection efforts".
The scheme’s first phase, which came into effect on 1st January, 2019, covers all types of imported and domestically produced and distributed cigarettes. As of May 1, importing any type of cigarettes without the digital marks will be prohibited.
He said the latest phase will see imported and locally produced shisha tobacco tracked by the final quarter of this year.
"The FTA also maintains ongoing communication with concerned companies, to help them adapt their systems to meet our requirements and coordinate between all parties involved," he said.
As with cigarettes, shisha was hit with a 100 per cent tax in October 2017, though manufacturers and cafes absorbed some of the costs to prevent prices doubling.
Apple%20Mac%20through%20the%20years
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Notable cricketers and political careers
- India: Kirti Azad, Navjot Sidhu and Gautam Gambhir (rumoured)
- Pakistan: Imran Khan and Shahid Afridi (rumoured)
- Sri Lanka: Arjuna Ranatunga, Sanath Jayasuriya, Tillakaratne Dilshan (rumoured)
- Bangladesh (Mashrafe Mortaza)
The Library: A Catalogue of Wonders
Stuart Kells, Counterpoint Press
Profile Periscope Media
Founder: Smeetha Ghosh, one co-founder (anonymous)
Launch year: 2020
Employees: four – plans to add another 10 by July 2021
Financing stage: $250,000 bootstrap funding, approaching VC firms this year
Investors: Co-founders
match info
Union Berlin 0
Bayern Munich 1 (Lewandowski 40' pen, Pavard 80')
Man of the Match: Benjamin Pavard (Bayern Munich)
The White Lotus: Season three
Creator: Mike White
Starring: Walton Goggins, Jason Isaacs, Natasha Rothwell
Rating: 4.5/5
The%20specs
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