Scientists Investigate Mystery Moon Bombardment 3.9 Billion Years Ago

By: April Carson



A team of scientists from the University of Münster recently conducted new research and confirmed the hypothesis that our Moon was subjected to a powerful bombardment 3.9 billion years ago. The study revealed that our satellite was assaulted by asteroids blasted out during the primary phase of Earth's formation.


What caused the early Moon's high rate of asteroid impacts?


The Moon's surface is pocked with numerous impact craters, the majority of which are extremely ancient. The Moon has been subjected to frequent asteroid strikes about 3.9 billion years ago, or 500 million years after its creation. However, until recently, the origin of these heavenly bodies remained a mystery.


There are a variety of theories about this. In a new research, planetary geologists used a highly precise method of isotopic analysis on lunar rocks to test several hypotheses. Furthermore, the rocks that were only chosen for study had formed 3.9 billion years ago as a result of the bombardment.


The samples under examination, according to the authors of the study, include tiny metal inclusions made out of material from impacting asteroids. This research utilized isotopic analysis of these tiny grains to determine where this material originated.


Because of their distinct rubidium and strontium isotopic compositions, ruthenium and molybdenum have become symbols for researchers due to their ability to most clearly indicate shifts in isotopic composition based on where they originated in the solar system.


Conclusions


The finding debunked the notion that a sharp surge in the severity of asteroid impacts on the Moon's surface might be linked to a major influx of such objects from beyond our solar system. The discovery of this object confounded the first notion that the Moon had been attacked by debris from our planet's formation as well as its own. However, there is one problem: the overabundance of asteroid impacts could not have originated solely from debris that survived the process.


Gas giants in the early Solar System


As a result, the study verified theoretical expectations. It was previously thought that once the solar system began to form, the orbits of its gas giants shifted. As a consequence, a large number of cosmic bodies from the outer reaches of the solar system entered its inner realm, and some of them bombarded Earth and the Moon.


These orbital adjustments are assumed to have occurred considerably earlier than we realize or expect. This supposition is based on the lack of evidence of asteroid impacts as a result of objects from outside the Solar System. This information implies that this process began near the birth of the solar system, no later than 100 million years after its formation.


Asteroids brought water to terrestrial planets


According to researchers, the new research also shows that because of the meteoric bombardment, ancient terrestrial planets acquired water, which provided the conditions for life to develop.





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About the Blogger:


April Carson is the daughter of Billy Carson. She received her bachelor's degree in Social Sciences from Jacksonville University, where she was also on the Women's Basketball team. She now has a successful clothing company that specializes in organic baby clothes and other items. Take a look at their most popular fall fashions on bossbabymav.com


To read more of April's blogs, check out her website! She publishes new blogs on a daily basis, including the most helpful mommy advice and baby care tips! Follow on IG @bossbabymav


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