Tomorrow evening, NASA’s Space Launch System rocket will hurl four astronauts toward the Moon on Artemis II—the first crewed lunar voyage since Apollo 17 in 1972. The world’s cameras will track Commander Reid Wiseman, Victor Glover, Christina Koch, and Canada’s Jeremy Hansen as they loop around the far side of the Moon over ten days. What the cameras will almost certainly miss is the quiet Israeli fingerprint already embedded in every Artemis capsule that follows. That omission tells us something important—not about Israel, but about how we misunderstand the economics of space exploration itself.

Here is the provocation: the new space economy does not reward nations that build entire rockets. It rewards nations that own irreplaceable subsystems—components so specialised, so difficult to replicate, that the mission cannot fly without them. In the language of transaction cost economics, these are relationship-specific assets: investments whose value is highest inside a particular partnership and cannot easily be redeployed elsewhere. Israel, with just over ten million people and a defence burden that consumed 8.8 percent of GDP in 2024—the steepest annual rise since the Six Day War—has no business building a Moon rocket. But it has every business becoming the supplier the Moon rocket cannot do without.

The clearest example is the AstroRad radiation vest, developed by StemRad—an Israeli-American startup born not from a space programme, but from the Fukushima nuclear disaster. When the reactors melted down in 2011, co-founders Oren Milstein and Daniel Levitt recognised that whole-body........

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