Compact X-ray telescope could deliver the first full chemical map of the Moon
The Moon’s surface has been sampled, scanned, and photographed for decades, yet one of the most basic questions about it remains unsettled: what, exactly, is the whole thing made of from place to place? That gap matters because the Moon’s chemistry is one of the clearest records of how it formed, cooled, and changed over time. It also matters for a more immediate reason. The lunar south pole, now a major focus for exploration planning, cannot be understood fully without a better picture of its elemental makeup. A team from Tokyo Metropolitan University says a compact X-ray telescope may finally make that possible. Using numerical simulations, the researchers found that a lightweight instrument orbiting the Moon could produce the first complete map of elemental abundance across the entire lunar surface, something past missions have not been able to achieve. Their results suggest that one telescope could map five key elements across the Moon in about two years. A larger system using 25 telescopes could do the job faster and at finer detail. X-ray Fluorescence Imaging …
