An international team of scientists has discovered evidence of extensive water reserves deep within primitive Mars by analyzing the NWA 7034 Martian meteorite, also known as Black Beauty, which was recovered from the Sahara Desert in 2011. According to the Paul Scherrer Institute (PSI) in Switzerland, non-destructive three-dimensional neutron and X-ray tomography revealed macroscopic hydrogen-rich deposits.
Non-Destructive Neutron Tomography Unlocks Hidden Hydration
For years, analyzing extraterrestrial samples meant dealing with a limitation: how to inspect the internal matrix of a rare rock without destroying it. Standard X-ray imaging typically reveals micro-fractures and voids, but it often misses the chemical composition hidden within those structures. Enter high-precision neutron imaging.
“Neutrons are particularly sensitive to hydrogen,” explained David Mannes regarding the methodological breakthrough. “In combination with X-ray tomography, not only could we detect tiny hydrated minerals, but also, for the first time, visualize larger macroscopic hydrogen deposits.”
By combining these two scanning methodologies at Switzerland's specialized neutron facility, researchers achieved a three-dimensional map of the internal chemistry of NWA 7034. The sample itself contains material dating back up to 4.48 billion years.
Mapping Planetary-Scale Groundwater Networks
The implications of this scan extend far beyond a single rock found in the Sahara. The hydration signals discovered inside the meteorite—representing about 11 percent of its total water content—are located within ancient fragments of the Martian crust. This points to early interactions between water and rock.
More importantly, the water signatures found in NWA 7034 match minerals discovered by the Perseverance rover on the other side of Mars. This demonstrates that groundwater was not in a single place, but covered the entire planet underground.
Preparing for Future Sample Return Missions
The analytical techniques used on Black Beauty will become the official instruction manual for safely studying real samples that humanity will bring directly from Mars in the future. Because the neutron scanning process achieved internal mapping without breaking, cutting, or damaging the rock, it provides a blueprint for future science.
As space agencies move closer to executing sample return missions to bring Martian soil and rock cores back to Earth, researchers will rely on this non-destructive methodology. It ensures that geological specimens can be interrogated for signs of ancient water without sacrificing the physical integrity of the material.
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