Scientists have modeled the colossal collision that created the Moon's South Pole-Aitken basin, showing that rocks from deep inside the lunar mantle could be found near future Artemis mission landing zones. This discovery opens exciting possibilities for exploring the Moon’s earliest history in unprecedented detail.
- South Pole-Aitken basin formed by a low-angle, iron-core impactor
- Deep lunar mantle rocks may lie near Artemis landing areas
- Simulations and gravity studies identify mantle deposits on Moon’s far side
What happened
Scientists recreated the ancient impact event that formed the South Pole-Aitken (SPA) basin, one of the largest and oldest craters in the solar system, located on the Moon’s far side. Their simulations revealed the impactor was likely a differentiated body with an iron core that struck the lunar surface at a shallow angle from north to south, carving out the basin’s unique elongated shape.
This powerful collision excavated extremely deep material, including lunar mantle rocks, which were blasted out and scattered around the basin. The intense heat generated by the impact also melted much of the region's rock. Subsequent studies using gravity measurements suggest that this deep material remains distributed beneath and around the basin, mixed throughout deposits that may still be accessible near the Moon’s south polar region.
Why it feels good
This discovery brings exciting promise for the Artemis program’s upcoming missions aimed at exploring the Moon’s south pole. Finding mantle rocks near landing sites offers a chance to study materials formed deep inside the Moon, providing clues about its early evolution and internal composition that have remained hidden until now.
Unearthing these primordial lunar materials could deepen our understanding of planetary formation processes and the Solar System’s history. Knowing that astronauts or robotic explorers may physically access such rare and scientifically valuable rocks close to their landing zones makes future missions more compelling and informative.
What to enjoy or watch next
As NASA prepares for Artemis missions targeting the southern lunar regions, researchers and space enthusiasts alike can look forward to detailed lunar surface explorations that may directly sample mantle-derived rocks. These missions could set new milestones in uncovering the Moon’s deep interior and early solar system history.
Keep an eye on follow-up studies and mission updates, especially those involving lunar gravity mapping and rover deployments. Future data will help refine our understanding of where the most intriguing samples lie and how best to investigate them, bringing us ever closer to walking on ancient materials from the Moon’s hidden depths.