Satellites could collide in space due to climate change shrinking part of the atmosphere, scientists have warned.
Space junk could get stuck in orbit due to humans damaging a layer called the thermosphere, according to MIT engineers. That would leave less room for new satellites that provide internet, navigation and weather forecasting to our planet.
Overcrowding in orbit could lead to “runaway instability” in which a cascade of collisions leaves so much debris that satellites can no longer venture to that part of space, researchers say. They predict that satellite capacity will be 50 to 66 per cent lower than without climate change.
“If we don't manage this activity carefully and work to reduce our emissions, space could become too crowded, leading to more collisions and debris,” said William Parker, the lead author of the new findings from MIT's AeroAstro department.
“More satellites have been launched in the last five years than in the preceding 60 years combined,” he said. “One of key things we’re trying to understand is whether the path we’re on today is sustainable.”
About 10,000 satellites are drifting in low-Earth orbit today, occasionally given a push to avoid collisions. The International Space Station is among the satellites drifting in the layer known as the thermosphere.
Once left to their fate, satellites are dragged down over time to an altitude where they burn up in the Earth's lower atmosphere. However, the new study reports that carbon dioxide and other greenhouse gases cause the thermosphere to shrink, which in turn reduces the “drag” effect.
'Sky is falling'
“The sky is quite literally falling – just at a rate that’s on the scale of decades,” Mr Parker said. “We rely on the atmosphere to clean up our debris. And if the atmosphere is changing, then the debris environment will change too.”
The thermosphere naturally contracts and expands every 11 years in response to solar activity, say scientists who worked on the US Air Force-funded research. However, it is believed that climate change is tampering with this natural cycle.
The predictions of a 50 to 66 per cent cut in capacity are for the year 2100, but the scientists say “megaconstellations” are already forming. One of these is the fleet of Starlink internet satellites run by Elon Musk's SpaceX.
“Our behaviour with greenhouse gases here on Earth over the past 100 years is having an effect on how we operate satellites over the next 100 years,” an MIT associate professor. “The megaconstellation is a new trend, and we’re showing, because of climate change, we’re going to have a reduced capacity in orbit.”
The study, Greenhouse gases reduce the satellite carrying capacity of low Earth orbit, is published today in the journal Nature Sustainability.
French business
France has organised a delegation of leading businesses to travel to Syria. The group was led by French shipping giant CMA CGM, which struck a 30-year contract in May with the Syrian government to develop and run Latakia port. Also present were water and waste management company Suez, defence multinational Thales, and Ellipse Group, which is currently looking into rehabilitating Syrian hospitals.
Results for Stage 2
Stage 2 Yas Island to Abu Dhabi, 184 km, Road race
Overall leader: Primoz Roglic SLO (Team Jumbo - Visma)
Stage winners: 1. Fernando Gaviria COL (UAE Team Emirates) 2. Elia Viviani ITA (Deceuninck - Quick-Step) 3. Caleb Ewan AUS (Lotto - Soudal)
The team
Photographer: Mateusz Stefanowski at Art Factory
Videographer: Jear Valasquez
Fashion director: Sarah Maisey
Make-up: Gulum Erzincan at Art Factory
Model: Randa at Art Factory Videographer’s assistant: Zanong Magat
Photographer’s assistant: Sophia Shlykova
With thanks to Jubail Mangrove Park, Jubail Island, Abu Dhabi
Company%20Profile
%3Cp%3E%3Cstrong%3ECompany%3A%3C%2Fstrong%3E%20Astra%20Tech%3Cbr%3E%3Cstrong%3EStarted%3A%20%3C%2Fstrong%3EMarch%202022%3Cbr%3E%3Cstrong%3EBased%3A%20%3C%2Fstrong%3EDubai%3Cbr%3E%3Cstrong%3EFounder%3A%20%3C%2Fstrong%3EAbdallah%20Abu%20Sheikh%3Cbr%3E%3Cstrong%3EIndustry%3A%3C%2Fstrong%3E%20technology%20investment%20and%20development%3Cbr%3E%3Cstrong%3EFunding%20size%3A%3C%2Fstrong%3E%20%24500m%3C%2Fp%3E%0A
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
The specs
Engine: 2.0-litre 4cyl turbo
Power: 261hp at 5,500rpm
Torque: 405Nm at 1,750-3,500rpm
Transmission: 9-speed auto
Fuel consumption: 6.9L/100km
On sale: Now
Price: From Dh117,059
The specs: 2018 Harley-Davidson Fat Boy
Price, base / as tested Dh97,600
Engine 1,745cc Milwaukee-Eight v-twin engine
Transmission Six-speed gearbox
Power 78hp @ 5,250rpm
Torque 145Nm @ 3,000rpm
Fuel economy, combined 5.0L / 100km (estimate)
UAE currency: the story behind the money in your pockets
COMPANY PROFILE
● Company: Bidzi
● Started: 2024
● Founders: Akshay Dosaj and Asif Rashid
● Based: Dubai, UAE
● Industry: M&A
● Funding size: Bootstrapped
● No of employees: Nine
More from Aya Iskandarani
The biog
Birthday: February 22, 1956
Born: Madahha near Chittagong, Bangladesh
Arrived in UAE: 1978
Exercise: At least one hour a day on the Corniche, from 5.30-6am and 7pm to 8pm.
Favourite place in Abu Dhabi? “Everywhere. Wherever you go, you can relax.”
THE SPECS
Engine: 6.75-litre twin-turbocharged V12 petrol engine
Power: 420kW
Torque: 780Nm
Transmission: 8-speed automatic
Price: From Dh1,350,000
On sale: Available for preorder now
Company%20profile
%3Cp%3E%3Cstrong%3EName%3A%3C%2Fstrong%3E%20Homie%20Portal%20LLC%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EStarted%3A%3C%2Fstrong%3E%20End%20of%202021%C2%A0%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EFounder%3A%20%3C%2Fstrong%3EAbdulla%20Al%20Kamda%C2%A0%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EBased%3A%3C%2Fstrong%3E%20Dubai%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3ESector%3A%3C%2Fstrong%3E%20FinTech%C2%A0%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EInitial%20investment%3A%3C%2Fstrong%3E%20Undisclosed%C2%A0%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3ECurrent%20number%20of%20staff%3A%3C%2Fstrong%3E%2014%C2%A0%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EInvestment%20stage%3A%20%3C%2Fstrong%3ELaunch%C2%A0%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EInvestors%3A%3C%2Fstrong%3E%20Self-funded%3C%2Fp%3E%0A
Company%20profile
%3Cp%3E%3Cstrong%3ECompany%20name%3A%3C%2Fstrong%3E%20Fasset%0D%3Cbr%3E%3Cstrong%3EStarted%3A%20%3C%2Fstrong%3E2019%0D%3Cbr%3E%3Cstrong%3EFounders%3A%3C%2Fstrong%3E%20Mohammad%20Raafi%20Hossain%2C%20Daniel%20Ahmed%0D%3Cbr%3E%3Cstrong%3EBased%3A%3C%2Fstrong%3E%20Dubai%0D%3Cbr%3E%3Cstrong%3ESector%3A%20%3C%2Fstrong%3EFinTech%0D%3Cbr%3E%3Cstrong%3EInitial%20investment%3A%3C%2Fstrong%3E%20%242.45%20million%0D%3Cbr%3E%3Cstrong%3ECurrent%20number%20of%20staff%3A%3C%2Fstrong%3E%2086%0D%3Cbr%3E%3Cstrong%3EInvestment%20stage%3A%3C%2Fstrong%3E%20Pre-series%20B%0D%3Cbr%3E%3Cstrong%3EInvestors%3A%3C%2Fstrong%3E%20Investcorp%2C%20Liberty%20City%20Ventures%2C%20Fatima%20Gobi%20Ventures%2C%20Primal%20Capital%2C%20Wealthwell%20Ventures%2C%20FHS%20Capital%2C%20VN2%20Capital%2C%20local%20family%20offices%3C%2Fp%3E%0A
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)
UAE currency: the story behind the money in your pockets
RESULTS
Light Flyweight (48kg): Alua Balkibekova (KAZ) beat Gulasal Sultonalieva (UZB) by points 4-1.
Flyweight (51kg): Nazym Kyzaibay (KAZ) beat Mary Kom (IND) 3-2.
Bantamweight (54kg): Dina Zholaman (KAZ) beat Sitora Shogdarova (UZB) 3-2.
Featherweight (57kg): Sitora Turdibekova (UZB) beat Vladislava Kukhta (KAZ) 5-0.
Lightweight (60kg): Rimma Volossenko (KAZ) beat Huswatun Hasanah (INA) KO round-1.
Light Welterweight (64kg): Milana Safronova (KAZ) beat Lalbuatsaihi (IND) 3-2.
Welterweight (69kg): Valentina Khalzova (KAZ) beat Navbakhor Khamidova (UZB) 5-0
Middleweight (75kg): Pooja Rani (IND) beat Mavluda Movlonova (UZB) 5-0.
Light Heavyweight (81kg): Farida Sholtay (KAZ) beat Ruzmetova Sokhiba (UZB) 5-0.
Heavyweight (81 kg): Lazzat Kungeibayeva (KAZ) beat Anupama (IND) 3-2.
COMPANY%20PROFILE
%3Cp%3E%3Cstrong%3ECompany%20name%3A%3C%2Fstrong%3E%20Switch%20Foods%3Cbr%3E%3Cstrong%3EStarted%3A%3C%2Fstrong%3E%202022%3Cbr%3E%3Cstrong%3EFounder%3A%3C%2Fstrong%3E%20Edward%20Hamod%3Cbr%3E%3Cstrong%3EBased%3A%3C%2Fstrong%3E%20Abu%20Dhabi%2C%20UAE%3Cbr%3E%3Cstrong%3EIndustry%3A%3C%2Fstrong%3E%20Plant-based%20meat%20production%3Cbr%3E%3Cstrong%3ENumber%20of%20employees%3A%3C%2Fstrong%3E%2034%3Cbr%3E%3Cstrong%3EFunding%3A%3C%2Fstrong%3E%20%246.5%20million%3Cbr%3E%3Cstrong%3EFunding%20round%3A%3C%2Fstrong%3E%20Seed%3Cbr%3E%3Cstrong%3EInvestors%3A%3C%2Fstrong%3E%20Based%20in%20US%20and%20across%20Middle%20East%3C%2Fp%3E%0A
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.
Ms Yang's top tips for parents new to the UAE
- Join parent networks
- Look beyond school fees
- Keep an open mind
The Good Liar
Starring: Helen Mirren, Ian McKellen
Directed by: Bill Condon
Three out of five stars
The five pillars of Islam
Most sought after workplace benefits in the UAE
- Flexible work arrangements
- Pension support
- Mental well-being assistance
- Insurance coverage for optical, dental, alternative medicine, cancer screening
- Financial well-being incentives
Zayed Sustainability Prize
More from Rashmee Roshan Lall
Who is Allegra Stratton?
- Previously worked at The Guardian, BBC’s Newsnight programme and ITV News
- Took up a public relations role for Chancellor Rishi Sunak in April 2020
- In October 2020 she was hired to lead No 10’s planned daily televised press briefings
- The idea was later scrapped and she was appointed spokeswoman for Cop26
- Ms Stratton, 41, is married to James Forsyth, the political editor of The Spectator
- She has strong connections to the Conservative establishment
- Mr Sunak served as best man at her 2011 wedding to Mr Forsyth
The specs
Price, base / as tested Dh1,470,000 (est)
Engine 6.9-litre twin-turbo W12
Gearbox eight-speed automatic
Power 626bhp @ 6,000rpm
Torque: 900Nm @ 1,350rpm
Fuel economy, combined 14.0L / 100km
Company%20profile
%3Cp%3E%3Cstrong%3EName%3A%3C%2Fstrong%3E%20Belong%3Cbr%3E%3Cstrong%3EBased%3A%3C%2Fstrong%3E%20Dubai%3Cbr%3E%3Cstrong%3EFounders%3A%3C%2Fstrong%3E%20Michael%20Askew%20and%20Matthew%20Gaziano%3Cbr%3E%3Cstrong%3ESector%3A%3C%2Fstrong%3E%20Technology%3Cbr%3E%3Cstrong%3ETotal%20funding%3A%3C%2Fstrong%3E%20%243.5%20million%20from%20crowd%20funding%20and%20angel%20investors%3Cstrong%3E%3Cbr%3ENumber%20of%20employees%3A%3C%2Fstrong%3E%2012%3C%2Fp%3E%0A
Global state-owned investor ranking by size
1.
|
United States
|
2.
|
China
|
3.
|
UAE
|
4.
|
Japan
|
5
|
Norway
|
6.
|
Canada
|
7.
|
Singapore
|
8.
|
Australia
|
9.
|
Saudi Arabia
|
10.
|
South Korea
|