Colossal asteroid impact forever changed the balance of the moon

[Admin]

A new study has revealed that the imbalance of craters seen on the nearside and far side of the moon is the result of disruption to the moon's mantle caused by a massive collision around 4.3 billion years ago.

Colossal asteroid impact forever changed the balance of the moon : Read more

 

[rod]

"One side of the moon is littered with far more craters than the other, and researchers finally know why: A massive asteroid that slammed into the moon around 4.3 billion years ago wreaked havoc in the moon's mantle, according to a new study."

I note here some other reports on this interesting impact on the Moon. Differences between the Moon's near and far sides linked to colossal ancient impact, https://phys.org/news/2022-04-differences-moon-sides-linked-colossal.html

Reference paper, A South Pole–Aitken impact origin of the lunar compositional asymmetry, https://www.science.org/doi/10.1126/sciadv.abm8475, 08-April-2022. "Abstract The formation of the largest and most ancient lunar impact basin, South Pole–Aitken (SPA), was a defining event in the Moon’s evolution. Using numerical simulations, we show that widespread mantle heating from the SPA impact can catalyze the formation of the long-lived nearside-farside lunar asymmetry in incompatible elements and surface volcanic deposits, which has remained unexplained since its discovery in the Apollo era..."

My observation. The simulations reported to explain the origin of SPA via large impactor (perhaps 170 km diameter hitting at some 10 km/s) covers 4.3 x 10^9 to 3.9 x 10^9 years ago for the Moon or some 400 million years simulated to explain lunar surface and features between the two sides of the Moon documented today. The giant impact model with Theia, magma ocean on the Moon forming after giant impact for some 200 million hears and now this postulated impact 4.3 billion years ago, the events of catastrophism operating in the Earth-Moon system are very crowded now for abiogenies working on Earth and life appearing as microorganisms dated some 4.28 billion years old. Like the giant impact model with Theia, varying the mass, diameter, density, angle of impact and velocities of impacts, can make very big differences in *model outcomes reported*. However, these simulations like large scale impact to explain the SPA and lunar surface differences between the two sides of the Moon, and giant impact model using Theia to create the Moon, demonstrate widespread catastrophism must be interpreted in the early Earth-Moon system, some serious catastrophism used. The Moon some 4.3 billion years ago, using present rate of recession and extrapolating uniformly, could be 34.5 earth radii distance from Earth when the large impact took place to create the SPA according to the simulation, or even closer than 34.5 earth radii using the giant impact model with Theia. These variables and parameters come into play now when explaining how abiogenesis created life on Earth from non-living matter, perhaps 4.28 billion years ago or even earlier. The Moon in the night sky would be much closer to Earth when abiogenesis creates life on Earth and the Moon likely still in a magma ocean state. Abiogenesis experiments in the lab must simulate or model the consequences of such large impacts on Earth during pre-biotic chemistry that is claimed or thought to lead to abiogenesis of first life on Earth.

Connect all the dots now and show how crowded the stage is with catastrophism operating in the Earth-Moon system to explain how abiogenesis creates life on Earth from non-living matter. Necessary demonstration should be a requirement for *good science*.

 

[newtons_laws]

The first sentence below the headline reads "An ancient collision is to blame for all the "holes" on the DARK (my capitals) side of the moon." Really space.com? You should know that there is no dark side of the Moon (in spite of the Pink Floyd album ), the Far side gets as much hours of sunlight during a lunar month as the Near side....

 

[Pogo]

Yeah, I noticed that!

 

[Catastrophe]

And, of course,

"mare | lunar feature | Britannic"

"The maria basins were formed beginning about 3.9 billion years ago during a period of intense bombardment by asteroid-sized bodies."

And why so long before the LHB?

Late Heavy Bombardment - Wikipedia

https://imgur.com/a/1LL8pkL

View: https://imgur.com/a/1LL8pkL

Artist's impression of the Moon during the Late Heavy Bombardment (above) and today (below)

Cat

 

[rod]

Catastrophism operating in the Earth-Moon system is getting very crowded now with reports of life appearing on Earth, as early as 4.28 billion years ago.

Diverse life forms may have evolved earlier than previously thought, https://phys.org/news/2022-04-diverse-life-evolved-earlier-previously.html, "Using many different lines of evidence, our study strongly suggests a number of different types of bacteria existed on Earth between 3.75 and 4.28 billion years ago." "This means life could have begun as little as 300 million years after Earth formed. In geological terms, this is quick—about one spin of the Sun around the galaxy."

Reference paper, Metabolically diverse primordial microbial communities in Earth’s oldest seafloor-hydrothermal jasper, https://www.science.org/doi/10.1126/sciadv.abm2296, 13-Apr-2022. "INTRODUCTION Fossils of primordial life or prebiotic and abiotic microstructures? Ferrous iron oxidation by anoxygenic phototrophs is thought to have been an early evolving metabolism important for the deposition of banded iron formations (BIFs) before the Great Oxidation Event (GOE) (1). Eoarchean BIFs contain magnetite with heavy Fe isotopes consistent with anoxygenic photosynthetic Fe2+ oxidation on the early Earth (2, 3). Evidence for the oldest putative microfossils has been reported in a jasper-carbonate BIF from the Nuvvuagittuq Supracrustal Belt (NSB) in the form of hematite filaments and tubes (4). The age of the NSB is still debated, but it is at least 3750 million years (Ma) and possibly as old as 4280 Ma (5, 6). These putative fossils are important for understanding abiogenesis, evolutionary biology, and exobiology. "