Nobel Prize in Physics Goes to 3 Scientists Whose Work Advanced Quantum Technology 

John Clarke, Michel H. Devoret and John M. Martinis are announced this year's Nobel Prize winners in Physics, by the Royal Swedish Academy of Sciences at a press conference in Stockholm, Sweden October 7, 2025. (Reuters)
John Clarke, Michel H. Devoret and John M. Martinis are announced this year's Nobel Prize winners in Physics, by the Royal Swedish Academy of Sciences at a press conference in Stockholm, Sweden October 7, 2025. (Reuters)
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Nobel Prize in Physics Goes to 3 Scientists Whose Work Advanced Quantum Technology 

John Clarke, Michel H. Devoret and John M. Martinis are announced this year's Nobel Prize winners in Physics, by the Royal Swedish Academy of Sciences at a press conference in Stockholm, Sweden October 7, 2025. (Reuters)
John Clarke, Michel H. Devoret and John M. Martinis are announced this year's Nobel Prize winners in Physics, by the Royal Swedish Academy of Sciences at a press conference in Stockholm, Sweden October 7, 2025. (Reuters)

John Clarke, Michel H. Devoret and John M. Martinis won the Nobel Prize in Physics on Tuesday for research on seemingly obscure quantum tunneling that is advancing digital technology.

Clarke, 83, conducted his research at the University of California, Berkeley; Martinis at the University of California, Santa Barbara; and Devoret at Yale and also at the University of California, Santa Barbara.

“To put it mildly, it was the surprise of my life,” Clarke told reporters at the announcement by phone after being told of his win.

He paid tribute to the other two laureates, saying that “their contributions are just overwhelming."

“Our discovery in some ways is the basis of quantum computing. Exactly at this moment where this fits in is not entirely clear to me.”

However, speaking from his cellphone, Clarke added: “One of the underlying reasons that cellphones work is because of all this work.’’

The Nobel committee said that the laureates' work in the 1980s continues to provide opportunities to develop “the next generation of quantum technology, including quantum cryptography, quantum computers, and quantum sensors.”

“It is wonderful to be able to celebrate the way that century-old quantum mechanics continually offers new surprises. It is also enormously useful, as quantum mechanics is the foundation of all digital technology,” said Olle Eriksson, Chair of the Nobel Committee for Physics.

The 100-year-old field of quantum mechanics deals with the seemingly impossible subatomic world where switches can be on and off at the same time and parts of atoms tunnel through what seems like impenetrable barriers. The prize-winning trio’s work helped take that into the larger world, where it has the potential to supercharge computing and communications.

What the three physicists did “is taking the scale of something that we can’t see, we can’t touch, we can’t feel and bringing it up to the scale of something recognizable and make it something you can build upon,” said Physics Today editor-in-chief Richard Fitzgerald, who in the 1990s worked in the field on a competitors’ group.

“Quantum computers is one very sort of obvious use, but they’re also can be used for quantum sensors, so to be able to make very sensitive measurements of, for example, magnetic fields, and perhaps also for cryptography, so to encode information so it cannot be easily listened to by a third party,” Mark Pearce, a professor of astrophysics and Nobel Physics Committee member, told The Associated Press.

It is the 119th time the prize has been awarded. Last year, artificial intelligence pioneers John Hopfield and Geoffrey Hinton won the physics prize for helping create the building blocks of machine learning.

On Monday, Mary E. Brunkow, Fred Ramsdell and Dr. Shimon Sakaguchi won the Nobel Prize in medicine on Monday for discoveries about how the immune system knows to attack germs and not our bodies.

Nobel announcements continue with the chemistry prize on Wednesday and literature on Thursday. The Nobel Peace Prize will be announced Friday and the Nobel Memorial Prize in economics on Oct. 13.

The award ceremony will be held Dec. 10, the anniversary of the 1896 death of Alfred Nobel, the wealthy Swedish industrialist and the inventor of dynamite who founded the prizes.

The prizes carry priceless prestige and a cash award of 11 million Swedish kronor (nearly $1.2 million).



Vietnam's Capital Chokes Through Week of Toxic Smog

This picture shows vehicles driving on a highway amid heavy air pollution conditions in Hanoi on December 11, 2025. (Photo by NHAC NGUYEN / AFP)
This picture shows vehicles driving on a highway amid heavy air pollution conditions in Hanoi on December 11, 2025. (Photo by NHAC NGUYEN / AFP)
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Vietnam's Capital Chokes Through Week of Toxic Smog

This picture shows vehicles driving on a highway amid heavy air pollution conditions in Hanoi on December 11, 2025. (Photo by NHAC NGUYEN / AFP)
This picture shows vehicles driving on a highway amid heavy air pollution conditions in Hanoi on December 11, 2025. (Photo by NHAC NGUYEN / AFP)

Toxic smog has blanketed Vietnam's capital for more than a week, blotting out the skyline and leaving residents wheezing as Hanoi's air quality dipped to among the world's worst on Thursday.

The city of nine million ranked second only to India's New Delhi on IQAir's ranking of most polluted cities on Thursday morning, improving slightly in the afternoon.

According to the Swiss monitoring company, levels of PM2.5 pollutants -- cancer-causing microparticles small enough to enter the bloodstream through the lungs -- were vastly higher than the World Health Organization's recommended daily exposure limit.

"I have experienced difficulty in breathing out on the streets these days," resident Dang Thuy told AFP on Thursday, adding she had bought two new air purifiers for her apartment.

Hanoi authorities, in an administrative order made public Thursday, urged people to limit time outdoors and said schools can close if the situation deteriorates.

The order instructed officials to crack down on illegal waste burning and take measures to control the dispersion of dust at construction sites, including covering trucks and spraying water to keep tiny particles from becoming airborne.

However, AFP reporters observed construction sites operating normally, with trucks arriving and departing without the required coverings.

"Authorities have been quite active on paper only. Nothing has worked yet and the terribly toxic air remains in our city," said Thuy.

According to the WHO, a number of serious health conditions, including strokes, heart disease and lung cancer, are linked to air pollution exposure.

Experts say pollution in Hanoi is a result of widespread construction, as well as emissions from the huge number of motorbikes and cars that criss-cross the capital every day.

Emissions from coal plants to the north and agricultural burning exacerbate the problem.

Authorities have announced plans to ban gas motorbikes from central Hanoi during certain hours starting in July next year.


Skydiver Survives Plane-tail Dangling Incident in Australia

This frame grab taken from undated video footage provided by the Australian Transport Safety Bureau on December 11, 2025 shows the moment a skydiver was left dangling thousands of meters in the air after their parachute caught on the plane's tail. (Photo by Handout / AUSTRALIAN TRANSPORT SAFETY BUREAU / AFP)
This frame grab taken from undated video footage provided by the Australian Transport Safety Bureau on December 11, 2025 shows the moment a skydiver was left dangling thousands of meters in the air after their parachute caught on the plane's tail. (Photo by Handout / AUSTRALIAN TRANSPORT SAFETY BUREAU / AFP)
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Skydiver Survives Plane-tail Dangling Incident in Australia

This frame grab taken from undated video footage provided by the Australian Transport Safety Bureau on December 11, 2025 shows the moment a skydiver was left dangling thousands of meters in the air after their parachute caught on the plane's tail. (Photo by Handout / AUSTRALIAN TRANSPORT SAFETY BUREAU / AFP)
This frame grab taken from undated video footage provided by the Australian Transport Safety Bureau on December 11, 2025 shows the moment a skydiver was left dangling thousands of meters in the air after their parachute caught on the plane's tail. (Photo by Handout / AUSTRALIAN TRANSPORT SAFETY BUREAU / AFP)

Heart-stopping footage released Thursday by Australian authorities showed the moment a skydiver was left dangling thousands of meters in the air after their parachute caught on the plane's tail.

The skydiver survived the incident, which occurred south of Cairns during a stunt in September but has only just been revealed following investigations by the transport safety watchdog.

Plans for a 16-way formation by parachutists at 15,000 feet (4,600 meters), filmed by a parachuting camera operator, hit chaos within seconds of the first participant reaching the plane's exit.

A video released by the Australian Transport Safety Bureau showed the participant's reserve parachute being activated after its handle snagged the wing flap of the plane.

The jumper was flung backwards -- their legs striking the aircraft -- as the orange reserve parachute wrapped itself around the plane's tail.

The parachuter also knocked the camera operator, who was straddling the side of the aircraft and preparing to jump, into freefall, the bureau said in a report that did not include names, ages, or genders.

The jumper was seen placing their hands on their helmet for a few seconds, as if in shock.

While dangling over the terrifying drop, the jumper cut the strings of the reserve chute with a hook knife and freed themself, Agence France Presse quoted the bureau as saying.

The parachuter then deployed their main chute and landed safely on the ground.

"Carrying a hook knife -- although it is not a regulatory requirement -- could be lifesaving in the event of a premature reserve parachute deployment," said the bureau's chief commissioner Angus Mitchell.

The aircraft's tail was "substantially damaged" by the incident and the pilot had limited control of the plane, issuing a mayday distress call, but managed to safely land the plane.


Chocolate Prices High Before Christmas Despite Cocoa Fall

Producers harvest cocoa on a plantation in Agboville, in the Agneby-Tiassa region of Ivory Coast, on December 4, 2025. (Photo by Sia KAMBOU / AFP)
Producers harvest cocoa on a plantation in Agboville, in the Agneby-Tiassa region of Ivory Coast, on December 4, 2025. (Photo by Sia KAMBOU / AFP)
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Chocolate Prices High Before Christmas Despite Cocoa Fall

Producers harvest cocoa on a plantation in Agboville, in the Agneby-Tiassa region of Ivory Coast, on December 4, 2025. (Photo by Sia KAMBOU / AFP)
Producers harvest cocoa on a plantation in Agboville, in the Agneby-Tiassa region of Ivory Coast, on December 4, 2025. (Photo by Sia KAMBOU / AFP)

After soaring for nearly two years, cocoa prices dropped sharply in 2025. However, chocolate, in demand ahead of the festive holiday season, has seen prices rise.

AFP examines the reasons for the divergence and the current state of the cocoa market.
Ivory Coast and Ghana are the world's biggest suppliers of pods -- the fruit of the cocoa tree -- from which cocoa beans are extracted to make chocolate.

The two west African countries account for more than half of global production, with most of the remainder coming from Brazil, Cameroon, Ecuador, Indonesia and Nigeria.

The geographic concentration of plantations makes the cocoa market highly vulnerable to West Africa's weather patterns and tree diseases.

Cultivation is meanwhile carried out by a very large number of independent smallholders.

Cocoa harvests between 2021 and 2024 failed to meet demand, which sent prices soaring.

"That was the result of ... supply side issues like ageing trees, the spread of swollen shoot virus (and) the spread of black pot disease" in Ghana and Ivory Coast, Rabobank analyst Oran van Dort told AFP.

Low usage of fertilizer and pesticides, owing to farmers' low incomes, also contributed, he added.

In December 2024, cocoa prices reached $12,000 per ton in New York trading, having stood at between $1,000 and $4,000 since the 1980s.

In Ghana and Ivory Coast, cocoa prices -- which rose significantly this year after having remained unchanged for a long time -- are set by the countries' respective governments.

"For the first time in years, I feel like we are farming with the government behind us, not on our own," Ghanaian producer Kwame Adu, 52, told AFP.

Higher income has allowed producers to buy fertilizer and machinery, improving their harvests -- and to plant new trees.

"Last year went well because as the cocoa was to bear fruit the rains came," Jean Kouassi, a 50-year-old Ivorian farmer, told AFP.

He owns plantations measuring four hectares, the size of nearly six football pitches.

"Record-high raw material costs (have) forced chocolate manufacturers into a series of unpopular choices: shrinkflation, price increases and the quiet dilution of cocoa content," noted Saxo Bank analyst Ole Hansen.

UK snack brand McVitie's recently disclosed that Penguin and Club bars are no longer classed as chocolate having reduced their cocoa content because of elevated prices.
They are instead each described as "chocolate flavor".

It is a major reversal especially for Club, whose advertising campaigns carried the slogan: "If you like a lot of chocolate on your biscuit, join our club."

Chocolate giants Ferrero, Mars, Mondelez and Nestle have meanwhile seen demand weaken, having raised the prices of their treats.

However, cocoa prices have retreated strongly compared to one year ago, with New York prices at around $6,000 per ton.

"The current slump arrives far too late to affect Christmas assortments already produced and priced months ago," said Hansen.

Nestle told AFP that "it is still too early to comment on specific changes regarding prices" in the wake of cocoa's drop.

"Recent shifts in cocoa prices are encouraging, but the market remains volatile," it added.

There is hope, however, for Easter eggs and chocolate bunnies set to hit shop shelves soon after Christmas, said Hansen -- but only if the market stabilizes around current levels, he added.