Locked inside a laboratory at Lancaster University, sitting on metal shelves and connected by copper pipework, are rows of beer kegs.
They do not contain beer.
They contain helium-3 — one of the most expensive materials on the planet. A single litre costs roughly $2,000. The university has been quietly building its stockpile for five decades, back when the gas was still affordable.
Now the rest of the world is waking up to what Lancaster has known for years — and a race is on to secure a new supply.
What Exactly Is Helium-3?
Helium-3 is an isotope of helium. The difference between it and the helium that fills birthday balloons — helium-4 — comes down to a single neutron in the atom's nucleus.
That one neutron changes everything.
Helium-4 is abundant, cheap and commercially produced at scale. Helium-3 is extraordinarily rare, tightly controlled and difficult to obtain. Most of what exists today comes from a single, uncomfortable source: the decay of tritium inside nuclear weapons.
As tritium — a radioactive form of hydrogen — breaks down inside warheads, it releases helium-3 as a byproduct. Estimates suggest tens of thousands of litres are produced globally every year through this process. But that number may not be enough for what is coming.
Why the World Suddenly Needs So Much of It
Two technologies are driving demand for helium-3 to levels that could dwarf current supply.
The first is quantum computing.
Quantum computers must operate at temperatures so cold they make outer space feel warm. Scientists achieve these extremes using a process called dilution refrigeration — which works by mixing helium-3 and helium-4 at extremely low temperatures.
As helium-3 separates from the mixture, it forms a pure layer on top. This separation absorbs energy, pulling temperatures down to the millikelvin range — roughly -273°C. That is the coldest temperature achievable in a laboratory setting.
Without helium-3, dilution refrigerators do not work. Without dilution refrigerators, the most powerful quantum computers cannot function.
Estimates suggest that as quantum computing scales globally, machines could eventually require thousands of litres of helium-3 depending on their architecture. A single large quantum computer may need far more than current supply chains can reliably provide.
The second driver is nuclear fusion.
Some fusion reactor designs use helium-3 as a fuel. When fused with deuterium — a form of hydrogen — helium-3 produces enormous amounts of clean energy with far less radioactive waste than conventional nuclear reactions. For decades this has been theoretical. It is becoming less so.
The Problem: Earth Barely Has Any
Helium-3 does exist underground, but concentrations on Earth are so low — measured in parts per billion — that conventional extraction is largely uneconomical.
The gas leaks into the atmosphere and escapes into space before accumulating in large quantities. What little is captured through nuclear weapons programs is carefully rationed by governments. There is no open market. There is no reliable commercial pipeline.
Demand is already outpacing supply in the quantum computing sector. The gap will only widen.
This is why researchers and entrepreneurs are looking somewhere else entirely.
The Moon May Hold the Answer
For billions of years, the solar wind — a constant stream of charged particles from the sun — has been bombarding the lunar surface. Earth's magnetic field deflects most of this. The moon has no such shield.
The result: helium-3 has been collecting in the lunar soil, known as regolith, for aeons.
Samples brought back from the Apollo missions hint at concentrations that far exceed anything found on Earth. The numbers remain uncertain — estimates range from a few parts per billion to around 20-something parts per billion — but even at those levels, the moon could represent the most significant helium-3 reservoir accessible to humanity.
The catch? Extracting it is an engineering challenge of historic proportions.
The Companies Already Planning to Go
Interlune, a Seattle-based startup, is the furthest along.
Founded by Rob Meyerson — who served as president of Jeff Bezos's Blue Origin from 2003 to 2018 — and co-founded by Apollo 17 astronaut Harrison "Jack" Schmitt, now in his 90s, Interlune has spent four years developing and testing extraction technology.
The company's plan is to send autonomous excavators to the lunar surface. These machines would scoop up regolith, crush and process it, and release the helium-3 trapped within.
Some equipment has already been tested during parabolic flights — where aircraft fly in large arcs to simulate zero gravity. Meyerson says the technology could be integrated into a lunar lander as early as autumn 2027.
The commercial interest is real. A Helsinki-based quantum computing company has already signed a $300 million deal with Interlune for 10,000 litres of helium-3 annually from 2028 through 2037. That is a binding commercial contract — not a letter of intent.
Astrotech Corporation is also in the race, planning to reach the moon via a SpaceX Starship rocket. Its approach differs slightly — rather than crushing regolith mechanically, Astrotech plans to heat the material, releasing the helium-3 through thermal extraction. The company has a small team working on a prototype and its chief executive says simply: "You'll see it."
The Staggering Scale of What's Required
Here is where optimism meets physics.
Lunar concentrations of helium-3 — even at the higher end of estimates — are still measured in parts per billion. That means extracting just one kilogram of helium-3 could require excavating and processing hundreds of thousands of tonnes of regolith.
Researchers have described this as a "mountain-moving" prospect. Literally.
Paul Burke at Johns Hopkins Applied Physics Laboratory has raised another concern: the Apollo samples brought back to Earth may have lost some of their helium-3 during the return journey, meaning our estimates of lunar concentrations could be overstated. We may not know the real numbers until someone actually drills on the moon.
Interlune's Meyerson acknowledges the scale of the challenge but says the company has run its economic projections in detail. Those numbers, however, remain private.
Could Earth Itself Be the Answer?
Not everyone is convinced the moon is the only option.
Pulsar Helium, headquartered in Portugal, is investigating a site in Minnesota that shows helium-3 concentrations around 12 parts per billion — comparable to some lunar estimates. Conventional drilling technology could potentially extract meaningful volumes from the site.
As one geochemist working with the company noted: "Minnesota is a lot easier to get to than the moon."
Meanwhile, some quantum computing engineers are working on cooling methods that reduce or eliminate dependence on helium-3 altogether. If those alternatives mature, they could reduce pressure on supply chains — and make the lunar mining economics harder to justify.
The path forward is not yet clear. What is clear is that the race to secure helium-3 — from the ground, from the moon, or from reformed nuclear programs — is already underway.
What This Means for Investors and the Broader Economy
The helium-3 story sits at the intersection of several of the most consequential technology trends of this decade: quantum computing, clean energy, space commercialisation and critical resource supply chains.
For investors tracking the space economy, the Interlune deal structure is instructive. A $300 million offtake agreement signed years before the first extraction mission is a signal that institutional buyers believe the supply will materialise. That is not speculative — that is capital being deployed against a timeline.
SpaceX's involvement in Astrotech's plans connects this story directly to the broader commercial space boom. With SpaceX now the fifth most valuable company in the world following its Nasdaq debut, the appetite for space-linked investment is at an all-time high.
Separately, the Strait of Hormuz crisis — which has disrupted global energy supply chains since February — has renewed interest in energy alternatives that sidestep geopolitical chokepoints. Helium-3 fusion, if it ever reaches commercial scale, would represent exactly that kind of energy independence. For context on how fragile current energy supply chains remain, see our coverage on why ships are still not moving through the Strait of Hormuz.
The broader investment picture around energy and technology is something we have covered extensively. Our breakdown of AI investment tools in Nigeria explores how emerging markets are adapting to the new technology landscape, while our guide on digital assets and blockchain covers the infrastructure layer that quantum computing will eventually power.
For those thinking about portfolio exposure to long-term technology trends, our guides on how to invest in Nvidia stock and passive investing for beginners are worth reading alongside this story. Nvidia's chips power the AI systems that will depend on quantum computing breakthroughs — the supply chain links are tighter than most retail investors realise.
Our S&P 500 complete guide also covers how space and deep technology companies are increasingly shaping the composition of major indices — a trend that will only accelerate as companies like Interlune and Astrotech move from prototype to production.
Helium-3 is not a household name. Most people have never heard of it.
But it sits at the centre of two of the most important technology transitions of the next 50 years — quantum computing and nuclear fusion — and the world currently has no reliable way to produce enough of it.
The moon might change that. Or Minnesota might. Or engineers might find a way around the problem entirely.
What is certain is that a gas currently stored in beer kegs at a British university could become one of the most strategically important materials of the coming century. Governments, startups and some of the world's most sophisticated investors are already positioning themselves accordingly.
The question is not whether helium-3 will matter. The question is who controls the supply when it does.
Reported by the WealthBlueprint NewsDesk. Sources: Lancaster University, Oak Ridge National Laboratory, Interlune, Astrotech Corporation, Johns Hopkins Applied Physics Laboratory, Woods Hole Oceanographic Institution, Pulsar Helium, Space News, Science Direct.