What are spy balloons and why could they play a key role in the future of aerial reconnaissance?
In an era of orbital satellites so advanced that they are able to make out objects half the size of cars from space, a spy balloon might seem like a bit of a relic.
They were a prominent tool for reconnaissance during the Cold War and were even used in a more basic form for intelligence gathering in the Napoleonic Wars more than 200 years ago.
But security experts say the balloons are just the “tip of a revolution” in the development and use of new high-altitude surveillance craft, with the UK even investing millions in a project to develop spy balloons last year.
On Saturday, the US shot down a suspected Chinese spy balloon that had been flying over its airspace.
A senior defence official had previously said the US has “very high confidence” it was a Chinese high-altitude balloon and was flying over sensitive sites to collect information, while China has not immediately denied the balloon belonged to them.
The Pentagon acknowledged reports of a second balloon that was spotted flying over Latin America, saying: “We now assess it is another Chinese surveillance balloon”.
A high-altitude balloon floats over Billings in Montana
The sightings prompted US Secretary of State Antony Blinken to postpone a high-profile visit to China which had been due to begin on Sunday, while the Pentagon accused Beijing of spying on sensitive military sites.
Beijing admitted that the initial balloon had come from China, but insisted it was a “civilian airship” that had strayed into American airspace and that it was for meteorological and other scientific research.
What are spy balloons?
The devices are lightweight balloons, filled with gas, usually helium, and attached to a piece of spying equipment such as a long-range camera.
They can be launched from the ground and are sent up into the air where they can reach heights of between 60,000ft (18,000m) and 150,000ft (45,000m), above the flight paths of commercial aircraft in an area known as “near space”.
Once in the air, they travel using a mixture of air currents and pressurised air pockets, which can act as a form of steering.
Why are they still useful in the satellite era?
According to defence and security analyst Professor Michael Clarke, the biggest advantage of spy balloons over satellites are that they can study an area over a longer period of time.
Professor Michael Clarke
“The advantage is they can stay in one place for a long time,” he told Sky News.
“Because of the way the Earth rotates, unless a satellite is over the Equator, you need three to five satellites going all the time to track the same spot.
“These balloons are also relatively cheap, and much easier to launch than a satellite.”
Will balloons continue to be used in future for spying?
Very much so, according to Professor Clarke.
Despite the wide use of satellite technology, countries including the UK are also focusing on the development and use of spycraft to operate in the upper atmosphere.
In August, it was announced the Ministry of Defence had agreed a £100m deal with US defence company Sierra Nevada to provide high-altitude unmanned balloons to be used for surveillance and reconnaissance.
Professor Clarke said: “(These balloons) are the very tip of the revolution for passive upper atmosphere aircraft.”
He said other defence firms, such as BAE, were working on ultralight solar-powered drones which are able to operate in the upper atmosphere and stay in place for up to 20 months.
Why have China used them now?
According to Professor Clarke, the use of these balloons, if indeed they were launched by China, will likely have been a message to the US following its decision to open new military bases in the Philippines.
“I think it’s a challenge,” he said.
“They (China) are signalling that if the US is going to come closer to them then they will be more aggressive with their surveillance.
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“It is also caused a political issue in the US now, because it will be seen as a sign of weakness not to shoot it down.
“This causes some embarrassment, but the US doesn’t need to respond.”
The balloon was spotted over Billings, Montana, on Wednesday – close to one of the US’s three nuclear missile silo fields at Malmstrom Air Force Base.
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Mao Ning, a Chinese foreign ministry spokesperson, says that those involved should be ‘cool-headed’
Military and defence leaders initially decided against shooting down the balloon due to the safety risk from falling debris.
Professor Clarke added: “I think the debris issue is a bit of an excuse. It was over one of the least densely populated areas of the US and if they needed to they could have asked everyone to stay inside.
“I don’t think they wanted to make it a bigger issue, because China are daring them to shoot it down and make it an international issue.”
US
US blocks Palestinian President Mahmoud Abbas and 80 other officials from United Nations’ annual meeting in New York
Palestinian President Mahmoud Abbas and 80 other officials have been blocked from attending September’s annual meeting of the United Nations General Assembly in New York.
US secretary of state Marco Rubio has revoked the US visas of delegates from the Palestinian Authority (PA) and Palestine Liberation Organisation (PLO), and denied others from applying for one.
It is the latest step by Donald Trump’s administration to target Palestinians with visa restrictions, and follows the suspension of a programme to allow injured children from Gaza to receive treatment in the US.
Mahmoud Abbas addressed the general assembly in 2024, but is barred from next month’s meeting. Pic: Reuters
“It is in our national security interests to hold the PLO and PA accountable for not complying with their commitments, and for undermining the prospects for peace,” a statement from the US State Department said.
It added that, to be considered partners for peace, both groups “must consistently repudiate terrorism, and end incitement to terrorism in education, as required by US law and as promised by the PLO”.
Offensive will cause ‘intolerable deaths’
Several US allies, including France, Malta, and Australia have announced plans to recognise Palestine as a state at September’s United Nations General Assembly. Canada and the UK will too, unless Israel meets certain conditions.
Israel declared Gaza’s largest city a dangerous combat zone on Friday.
The army launched a planned offensive that has drawn international condemnation.
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Thick smoke rises from Gaza City after Israeli strikes
Foreign ministers from Iceland, Ireland, Luxembourg, Norway, Slovenia and Spain released a joint statement saying the military operations in Gaza City will cause “intolerable deaths of innocent Palestinian civilians”.
Gaza latest: Israel’s Gaza City offensive condemned
Hundreds of thousands of Palestinians are sheltering in Gaza City while enduring famine.
An Israeli armoured vehicle in northern Gaza on Friday. Pic: AP
Palestinians ride a truck carrying humanitarian aid in Gaza City. Pic: AP
The Palestinian ambassador to the United Nations (UN), Riyad Mansour, said Mr Abbas had planned to lead the delegation to the UN meetings and was expected to address the general assembly at the general debate, which begins on 23 September.
He was also expected to attend a high-level meeting co-chaired by France and Saudi Arabia on 22 September about a two-state solution, a broad idea involving Israel coexisting with an independent Palestinian state.
The State of Palestine is an observer member of the UN, meaning it can speak at meetings but not vote on resolutions.
The State of Palestine cannot vote on UN resolutions. Pic: AP
US decision ‘contravenes international law’
The Palestinian Authority “expressed its deep regret and astonishment” at the visa decision, calling it “a violation of US commitments” as the host of the UN, and claiming it “contravenes international law”.
UN spokesman Stephane Dujarric said the world body would be seeking clarification in the “hope that this will be resolved”.
Hundreds of diplomats left when Israeli leader Benjamin Netanyahu began speaking at the general assembly in 2024. Pic: Reuters
The State Department said that the Palestinian Authority’s mission to the UN, comprising officials who are permanently based there, would not be included in the restrictions.
Under a 1947 UN agreement, the US is generally required to allow access for foreign diplomats to the UN in New York.
But Washington has said it can deny visas for security, extremism and foreign policy reasons.
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The death toll in Gaza has now risen to 63,025, according to the Hamas-run health ministry, which does not differentiate between civilians and combatants.
It also reported five more malnutrition-related deaths in the last 24 hours, bringing the total number during the war to 322, with 121 of them children.
US
Boy, 8, and girl, 10, killed in US Catholic school shooting named – as father brands attacker ‘a coward’
The families of two children killed in the US Catholic school shooting have said their “hearts are broken” and branded the attacker a “coward”.
Fletcher Merkel who was eight and 10-year-old Harper Moyski were killed during mass at Annunciation Catholic School in Minneapolis on Wednesday.
Eighteen other people were injured, including children aged between six and 15 and three adults in their 80s.
Police said Robin Westman, a male born as Robert Westman, opened fire with a rifle through the windows of the school’s church as children sat in pews.
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New details released of US school shooting
‘Our hearts are broken’
Harper’s parents, Michael Moyski and Jackie Flavin, remembered her as “a bright, joyful, and deeply loved 10-year-old whose laughter, kindness, and spirit touched everyone who knew her”.
“Our hearts are broken not only as parents, but also for Harper’s sister, who adored her big sister and is grieving an unimaginable loss. As a family, we are shattered, and words cannot capture the depth of our pain,” their statement said.
They urged leaders and communities to “take meaningful steps to address gun violence and the mental health crisis in this country.”
“Change is possible, and it is necessary – so that Harper’s story does not become yet another in a long line of tragedies,” the statement added.
The family of Fletcher Merkel said there was a ‘hole in our hearts’. Pic: Family handout/AP
‘Fletcher loved his family’
In a statement reported by Sky’s US partner network NBC News, Fletcher’s father Jesse Merkel blamed the “coward” killer for why the boy’s family can’t “hold him, talk to him, play with him, and watch him grow into the wonderful young man he was on the path to becoming”.
He said: “Fletcher loved his family, friends, fishing, cooking, and any sports that he was allowed to play.
“While the hole in our hearts and lives will never be filled, I hope that in time, our family can find healing.”
Mr Merkel also praised “the swift and heroic actions of children and adults alike from inside the church”.
“Without these people and their selfless actions, this could have been a tragedy of many magnitudes more. For these people, I am thankful,” he added.
Families and loved ones reunite at the scene after the shooting. Pic: Reuters
Mayor calls for assault weapon ban
It comes after Minneapolis mayor Jacob Frey called for a statewide and federal ban on assault weapons, a day after the deadly school shooting.
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Minneapolis mayor urges assault weapons ban
“Thoughts and prayers are not going to cut it. It’s on all of us to see this through,” the mayor said at a news conference. “We need a statewide and a federal ban on assault weapons.
“We need a statewide and a federal ban on high-capacity magazines. There is no reason that someone should be able to reel off 30 shots before they even have to reload.
“We’re not talking about your father’s hunting rifle gear. We’re talking about guns that are built to pierce armour and kill people.”
Meanwhile, Minneapolis police chief Brian O’Hara gave an update on the investigation, saying the suspect had fired 116 rifle rounds into the church.
“It is very clear that this shooter had the intention to terrorise those innocent children,” he added, before saying the killer “fantasised” about the plans of other mass shooting attackers and wanted to “obtain notoriety”.
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Thomas Klemond, interim CEO of Minneapolis’s main trauma hospital Hennepin Healthcare, said at an earlier news conference that the hospital was treating nine patients injured in the shooting.
One child at the hospital was in a critical condition, he added.
Children’s Minnesota Hospital also said that three children remain in its care as of Thursday morning.
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