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flag Scientists found 1,114 new Moon ridges, proving recent tectonic activity and posing moonquake risks for Artemis missions.

flag Smithsonian scientists have identified 1,114 new small mare ridges on the Moon, bringing the total to 2,634, with an average age of 124 million years. flag These features, formed by the Moon’s ongoing contraction as it cools, indicate recent tectonic activity and a shared origin with lobate scarps. flag The findings confirm the Moon is still geologically active, with potential moonquake risks in the maria—key areas for future Artemis missions—highlighting the need to account for seismic hazards in site selection and mission planning.

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