A much-delayed nuclear fusion project involving more than 30 countries is ready to assemble the world's most powerful magnet - a key part of efforts to generate clean energy by smashing atoms together at super-high temperatures.
The International Thermonuclear Experimental Reactor (ITER) project, based in southern France and backed by the United States, China, Japan, Russia and the European Union, needs the magnetic system to create an "invisible cage" to confine super-hot plasma particles that combine and fuse to release energy.
ITER said late on Wednesday that the final component of the system - the central solenoid - had been completed and tested by the United States, and assembly was now underway.
"It is like the bottle in a bottle of wine: of course the wine is maybe more important than the bottle, but you need the bottle in order to put the wine inside," said Pietro Barabaschi, ITER's director general.
The magnet was originally scheduled for completion in 2021, but has been beset by delays.
"To be behind schedule by four years after 10 years of effort shows just how troubled this project is," said Charles Seife, a professor at New York University who writes about nuclear fusion.
Barabaschi said the "crisis" was now over and construction was proceeding at the fastest pace in ITER's history. The start-up phase of the project will begin in 2033, when it is scheduled to start generating plasma.
He said ITER proved that countries could still cooperate despite geopolitical tensions.
"They have a very, very strong cohesion of objectives and for the time being I see no sign of a withdrawal from anyone."
Fusion investment has been growing, with dozens of initiatives currently underway. Several private start-ups have said they can build commercial fusion reactors within a decade.
Barabaschi said he was sceptical but supportive of the dozens of ventures in development across the world.
"We already know that we can get fusion," he said. "The question is, are we going to get fusion in such a way that it would be cost-effective?
"I am quite sceptical that we will be able to achieve this within, say, one or even two decades. Frankly speaking, it will take more time."
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Hungary has said it will block the European Union’s latest sanctions package against Russia unless oil supplies through the Druzhba pipeline are restored, deepening a dispute with Brussels and Kyiv over energy security.
The Russian Defence Ministry claimed on Saturday (21 February) that its forces had captured another settlement in eastern Ukraine.
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Ankara has rejected media reports claiming it plans to deploy military forces into Iranian territory in the event of a U.S. attack on the Islamic republic.
Russian President Vladimir Putin’s special envoy, Kirill Dmitriev, arrived in Geneva and may hold talks with U.S. officials, according to the RIA news agency.
Two people were killed and around 40 injured when a tram derailed in central Milan on Friday (27 February), a spokesperson for the local fire service said.
The death toll from heavy rains and flooding in Brazil’s Minas Gerais state has risen to 46, authorities said, with 21 people still reported missing. The storms triggered landslides and widespread flooding, displacing thousands across Juiz de Fora and Uba.
The administration of U.S. President Donald Trump on Thursday (12 February) announced the repeal of a scientific finding that greenhouse gas emissions endanger human health, and eliminated federal tailpipe emissions standards for cars and trucks.
Tropical Cyclone Gezani has killed at least 31 people and left four others missing after tearing through eastern Madagascar, the government said on Wednesday, with the island nation’s second-largest city bearing the brunt of the destruction.
Rivers and reservoirs across Spain and Portugal were on the verge of overflowing on Wednesday as a new weather front pounded the Iberian peninsula, compounding damage from last week's Storm Kristin.
Morocco has evacuated more than 100,000 people from four provinces after heavy rainfall triggered flash floods across several northern regions, the Interior Ministry said on Wednesday.
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