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Half of 137 giant sensors are finished, in a workshop in Cheshire

Qurexa Editorial Team20 October 20266 min read 0 0
Half of 137 giant sensors are finished, in a workshop in Cheshire

What happened

On 19 October 2026, the Science and Technology Facilities Council announced that the UK has reached the halfway point in building a set of enormous detector panels for an experiment buried nearly a mile underground in South Dakota. The experiment is called DUNE, short for the Deep Underground Neutrino Experiment. The panels are called Anode Plane Assemblies, or APAs. The UK is building 137 of the 150 that DUNE needs, and half of those 137 are now complete. Eight finished panels have already arrived at Fermilab, near Chicago, for final testing. The panels are made by a team of 25 technicians and engineers at STFC's Daresbury Laboratory in Cheshire. Universities across the UK supply components, run quality checks and provide the scientific leadership: Lancaster, Liverpool, Imperial College London, Manchester, Sheffield and Sussex. The wider DUNE-UK collaboration takes in 14 universities and two national laboratories. Each panel is about 6.3 metres tall and 2.3 metres wide, roughly the height of a two-storey house. Each one carries about 24 kilometres of fine copper-beryllium wire, held in place by thousands of connections. Ian Lazarus, Head of Technology at Daresbury, called it "a fantastic milestone for everyone involved". Professor Dave Newbold, now a co-spokesperson for the DUNE collaboration, said the team had "accomplished a huge milestone". Justin Evans of the University of Manchester, who leads the UK APA project, called it "a major step towards realising DUNE".

Why this matters

DUNE is trying to answer a question that sounds almost childish until you think about it: why is there anything at all? The standard account of the early universe says matter and antimatter should have been made in equal amounts. Equal amounts would have cancelled each other out. Nothing would be left. No stars, no planets, no us. Something tipped the balance very slightly towards matter, and physicists do not know what. Neutrinos are one of the better suspects. They are tiny, have almost no mass, and barely interact with anything. Trillions pass through your body every second without touching a single atom. They also change type as they travel, which is odd, and the details of that change may differ between neutrinos and their antimatter twins. If so, that difference could be part of the answer. To look for it, DUNE will fire a beam of neutrinos 1,300 kilometres across the United States, from Fermilab in Illinois to a detector in a former gold mine in South Dakota. The detector will hold tens of thousands of tonnes of liquid argon. Being nearly a mile down shields it from cosmic rays and background radiation, which would otherwise drown out the signal. The UK's contribution is not a cheque. It is the hardware that actually does the seeing.

What the evidence actually says

This is an engineering milestone, not a discovery. No new physics has been found. It is worth saying plainly, because science stories often blur the two. What has been achieved is manufacturing at an unusual standard. When a neutrino does interact with the liquid argon, it produces charged particles, and those particles leave faint electrical signals as they move. The wires on each APA pick up those signals. From the pattern across the wires, physicists reconstruct what happened and where. That only works if the wires are in the right place and stay there. Twenty-four kilometres of wire per panel, tensioned correctly, across 137 panels, with no realistic chance of repair once the thing is sealed in liquid argon a mile underground. The engineering problem is the project. The timeline is long and the announcement is honest about it. The remaining panels are due to be finished by May 2029, with delivery for installation in South Dakota beginning in November 2029. The announcement does not say when DUNE will start taking data, and it would be wrong to guess. So this is a progress report, roughly on schedule, on a machine that will not produce results for years. That is how large physics experiments work. The Nobel Prize in Physics awarded earlier this month went to the IceCube neutrino observatory in Antarctica, a project that also took many years of building before it produced anything. The two are separate experiments doing different things, but the pattern is the same: the long, unglamorous build comes first.

Practical advice

There is nothing here you need to do. But there are a couple of things worth knowing. If you have a teenager wondering whether engineering is "real" science, this is a good example to hand them. The hard part of DUNE is not the theory. It is 25 people in Cheshire building something to a tolerance that cannot be fixed later. The physics only works if the manufacturing does. STFC's Daresbury Laboratory runs public events and open days, and the universities involved (Lancaster, Liverpool, Imperial, Manchester, Sheffield, Sussex) all run outreach programmes. If a school trip or a work experience placement in particle physics engineering sounds useful, those are the doors to knock on. And if you want to follow the project rather than wait for a headline in 2030, STFC and the DUNE collaboration publish progress updates. The next landmark worth watching for is the completion of the remaining panels in 2029.

What to know

On 19 October 2026, STFC announced that half of the 137 Anode Plane Assemblies the UK is building for the DUNE neutrino experiment are complete, with eight already delivered to Fermilab for testing. The UK is making 137 of the 150 panels DUNE needs. Each is about 6.3m by 2.3m and strung with roughly 24km of fine wire, built by 25 technicians at Daresbury Laboratory in Cheshire with six university partners. DUNE will fire neutrinos 1,300km across the United States into a detector holding tens of thousands of tonnes of liquid argon, nearly a mile underground, to investigate why the universe is made of matter rather than antimatter. The remaining panels are due by May 2029, with installation delivery from November 2029. This is a manufacturing milestone, not a scientific result. Sources: UKRI / STFC, "UK halfway milestone in mission to unlock neutrino secrets", 19 October 2026, https://www.ukri.org/news/uk-halfway-milestone-in-mission-to-unlock-neutrino-secrets/ ; University of Liverpool, "Mission to unlock neutrino secrets reaches major milestone", 19 October 2026, https://news.liverpool.ac.uk/2026/10/19/mission-to-unlock-neutrino-secrets-reaches-major-milestone/ ; Imperial College London, "UK milestone brings DUNE neutrino detector closer to discovery", 19 October 2026, https://www.imperial.ac.uk/news/articles/natural-sciences/physics/2026/uk-milestone-brings-dune-neutrino-detector-closer-to-discovery/ This article is for general information and does not replace advice from a doctor, pharmacist or other qualified healthcare professional.

#neutrinos#DUNE#STFC#physics#UK science#Daresbury

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