Moon’s Far Side Reveals a Cooler Interior,New Analysis Suggests

The interior of the mysterious far side of the moon may be colder than the side constantly facing Earth,suggests a new analysis of rock samples co-led by a UCL (university College London) and Peking University researcher.

Chang’e 6 Mission and rock Sample Analysis

The study,published in the journal nature Geoscience,looked at fragments of rock and soil scooped up by China’s Chang’e 6 spacecraft last year from a vast crater on the far side of the moon. This mission represents a important step in lunar exploration, providing scientists with invaluable samples from a previously inaccessible region.

Temperature Differences Revealed

The research team confirmed previous findings that the rock sample was about 2.8 billion years old. They analyzed the chemical make-up of its minerals to estimate that it formed from lava deep within the moon’s interior at a temperature of about 1,100 degrees C – approximately 100 degrees C cooler than existing samples from the near side.

The “Two-Faced Moon”

Co-author Professor Yang Li, based at UCL’s Department of Earth Sciences and Peking University, explained: “The near side and far side of the moon are very different at the surface and potentially in the interior. It is one of the great mysteries of the moon. We call it the two-faced moon.A dramatic difference in temperature between the near and far side of the mantle has long been hypothesized, but our study provides the first evidence using real samples.”

Co-author Mr Xuelin Zhu, a phd student at Peking University, added: “Thes findings take us a step closer to understanding the two faces of the moon. They show us that the differences between the near and far side are not only at the surface but go deep into the interior.”

Surface Differences and Volcanic Activity

The far side of the moon exhibits distinct characteristics compared to the near side. It has a thicker crust, is more mountainous and cratered, and appears to have experienced less volcanic activity, with fewer dark patches of basalt formed from ancient lava.

Heat-Producing elements and Interior Cooling

The researchers noted that the far side of the interior may have been cooler due to having fewer heat-producing elements – elements such as uranium, thorium, and potassium, which release heat during radioactive decay. This difference in elemental composition could explain the observed temperature disparity.

Key Takeaways

• Analysis of rock samples from the far side of the moon suggests a cooler interior compared to the near side.
• The temperature difference is estimated to be around 100 degrees C.
• This finding supports the hypothesis of a “two-faced moon” with distinct internal structures.
• Fewer heat-producing elements in the far side’s interior may contribute to the lower temperature.
• The Chang’e 6 mission provided crucial samples for this research.

Future Research and Implications

This revelation opens new avenues for lunar research. Further analysis of samples from the far side, combined with advanced modeling techniques, will be crucial to fully understand the moon’s internal structure and evolution. understanding these differences can provide valuable insights into the formation and thermal history of the moon, and potentially other rocky planets in our solar system.