Fusion and the Reach into Space

The same fuels and physics that power a clean planet also point outward — helium-3, deep-space power, and a lunar link that closes back onto Earth.

Vision, not specification. This page describes a future that fusion could help make possible — not a product promise, forecast, or performance claim. The Kronos machines today are design and simulation studies: the breeder (Hyperion) and the burner (Aegis / MetroVolt). No hardware net-gain has been demonstrated; construction of the first breeder is planned to begin in Q2 2027, with first-of-a-kind first tritium targeted around 2030.

An outward-facing fuel

The burner runs on deuterium and helium-3. Helium-3 is rare on Earth but comparatively abundant in the lunar regolith, which is why fusion and space exploration have long been linked in serious long-range thinking. In the vision, that link runs both ways: space capability helps supply fusion fuel, and fusion helps power the reach into space.

The breeder (Hyperion) is relevant here too. Among its designed products is helium-3 at roughly 1.97 kg/yr class output, alongside its tritium-class production. A terrestrial helium-3 source and a lunar one are complementary parts of the same long-horizon fuel picture.

Power for the journey

Beyond fuel, compact fusion has long been imagined as a power and propulsion source for deep-space missions, where sunlight is weak and chemical fuel is heavy. That application sits far out on the horizon and Kronos makes no near-term claim about it. It is named here because it is part of why the physics matters beyond the grid.

Held at arm’s length

• The helium-3 numbers are frozen breeder design figures, not delivered output.
• A lunar fuel supply chain is a multi-decade proposition well beyond current work.
• Deep-space propulsion is illustrative of scope, not a Kronos product.

See the terrestrial fuel case in the fuel that doesn’t run out and the medical side in energy for medicine.