Luxembourg Space Agency Backs CSMC's Quantum Gravity Sensor for Subsurface Resource Mapping

The Luxembourg Space Agency (LSA) has awarded a contract to Canadian Space Mining Corporation (CSMC) to develop QASM — the Quantum Atomic Subsurface Mapper — a space-based quantum gravimetry sensor designed to detect subsurface resources from orbit. The deal, announced in late 2025, places Luxembourg at the centre of a new chapter in the global race to map critical minerals using quantum technology.

How QASM works

QASM uses cold-atom interferometry to perform ultra-sensitive gravity measurements. By cooling clouds of atoms to near absolute zero and measuring how they respond to local gravitational variations, the system can infer the density distribution of materials beneath the surface — even through hundreds of metres of rock or regolith. From orbit, that translates into a tool capable of identifying critical minerals and water on Earth and on planetary bodies such as the Moon and Mars.

The partners

CSMC is the prime contractor, with the Luxembourg Space Agency as the funding authority. The European Space Agency is a collaborator, reflecting the broader EU–Canada cooperation framework on quantum technologies for space exploration that has been quietly building over the past two years. The contract value has not been disclosed.

Timeline

Early laboratory demonstrations of QASM are scheduled for 2026, with field testing and validation to follow. CSMC and the LSA are targeting an in-space demonstration mission within the next several years, though that depends on the success of the ground-based phases and on a launch opportunity yet to be confirmed.

Why it matters

Subsurface resource detection is the rate-limiting step for both terrestrial critical-minerals strategy and any serious off-world economy. Today's gravimetric surveys rely on aircraft and slow, expensive ground campaigns; quantum gravimetry from orbit could compress that timeline dramatically. CSMC CEO Daniel Sax said quantum sensors like QASM "will redefine how we can more intelligently meet society's resource needs."

For Luxembourg, the contract is a continuation of the long-term bet that began with the 2017 Space Resources Act: position the country as the legal, financial and now scientific home of off-world resource utilisation. The QASM project is also a strategic complement to the Space Resources Week conference that the LSA, ESA and ESRIC will host from 4 to 7 May 2026.