On 2026-08-08, Global Energy Prize reported that engineers from the University of Manchester and the European Space Agency tested the MoLES3 robotic system at the LUNA test site in Germany using lunar soil simulant. Over 2.5 hours, the system completed 37 operation cycles and processed 10.8 kilograms of regolith, producing 2.1 kilograms of fine fraction suitable for subsequent oxygen extraction.
The key technical point is not excavation alone but beneficiation: the system combined a mobile rover, robotic arm, scoop, and a stationary sorting unit to separate regolith by size before oxygen extraction. That is mission-critical for lunar habitation because oxygen production systems depend on consistent feedstock quality, and any sustainable off-Earth settlement will need automated mining, transport, sorting, and processing chains that can work with minimal human intervention.
Ark priority is to track MoLES3 follow-on trials, compare its sorting efficiency against other ISRU approaches such as molten-salt electrolysis feedstock prep, and assess whether the rover-plus-fixed-processing architecture scales to polar operations. The team should specifically monitor mass throughput per hour, fraction yield, autonomy level, dust tolerance, and power demand, because these determine whether regolith handling can support life support oxygen, industrial metals extraction, and construction material production under lunar conditions.