Is the moon still geologically active? Evidence says it’s possible Wrinkle ridges that formed in the past 160 million years suggest recent geological activity on the moon. Astrobitica February 3, 2025 (Last updated: February 3, 2025) 1 minute read Wrinkle ridges that formed in the past 160 million years suggest recent geological activity on the moon. About the Author Astrobitica Administrator Visit Website View All Posts Post navigation Previous: NASA pauses work by key space science groups amid Trump executive ordersNext: ‘Roasting marshmallow’ exoplanet is so hot, it rains metal. How did it form?