Científicos simularon con supercomputers cómo habría nacido la Luna

Científicos recrean cómo se originó la Luna

A brutal impact occurred more than 4000 million years ago habría formeda la Luna. La teoría más apoyada es que un objeto del espacio approximately del tamaño de Marte que los científicos han llamado ‘Theia’, golpeó a la Tierra pocos millionones de años después de su formationa. This giant impact can be placed quickly on the moon in orbit around the Earth instead of creating a disk of debris from which the moon gradually formed with time, suggests a new investigation.

Expertos soistenen esta teoría en una nueva investigationa, en la que realizaron una simulation por computadora highly detailed creada por el Instituto de Cosmología Computacional de la Universidad de Durham. This is newescenario de satellite immediato”, it would mean that the proto-luna estuvo menos fundida during its formation and would suggest that a large part of it was formed immediately after a giant impact on Earth.

This theory of training is also faster I would suggest a different internal composition for the moon that could offer an explanation para algunas de las curiosas caracteristics similares a las de la Tierra que se ven en las muestras lunares.

The Moon is the only natural satellite of the Earth and revolves around the planet at an average distance of approximately 385,000 kilometers (REUTERS/Borja Suarez)
The Moon is the only natural satellite of the Earth and revolves around the planet at an average distance of approximately 385,000 kilometers (REUTERS/Borja Suarez)

Anteriormente se teorizó que este impacto arrojó un campo de escombros a partir del cual se formó gradually la luna. Una consecuencia de esto habría sido que The Moon was created mainly by the material provided by Theia in the place of the material of the Earth. This idea was challenged when it was discovered that the lunar rocks appear to have a composition very similar to Earth’s mantle. The high resolution results obtained with the impressive computing power of the DiRAC Memory Intensive service called COSMA, located at the University of Durham in England, mostró una capa exterior de la luna rica en material procedente de la Tierra.

“This route of formation could help explain the similarity in the isotopic composition between the lunar rocks returned by the Apollo astronauts and the Earth’s mantle. También puede haber consecuencias observables para el grosro de la corteza lunarwhich would allow us to specify even more the type of collision that took place, “said Vincent Eke, co-author of research and physics at the University of Durham, in a statement.

The additional computational power revealed that the simulations of lower resolution pueden perder crucial aspects of the collisions on a large scale. With simulations of high resolution, researchers can discover characteristics that could not be accessed in previous studies. If a large part of the Moon was formed immediately after the giant impact, this could also mean that it melted less during the formation than in traditional theories where the Moon grew within a disk of debris around the Earth. Depending on the details of the posterior solidification, these theories should predict different internal structures for the Moon.

The simulation of the creation of the Moon carried out with a supercomputer
The simulation of the creation of the Moon carried out with a supercomputer

A fan of new possibilities

This opens up a whole new range of possible starting points for the evolution of the Moon. We entered this project without knowing exactly what the results of these very high resolution simulations would be. Then, in addition to the great revelation that standard resolutions can give incorrect answers, it was very exciting that the new results could include a tempting satellite similar to the Moon in orbit,” explained Jacob Kegerreis, principal investigator of the study. published el martes ultimo en Astrophysical Journal Letters. The team’s simulation included hundreds of different impact scenarios that varied the angle and speed of Theia’s collision, además de variar las masas y giros de los dos cuerpos en collisión. It also showed that a large natural satellite like the moon still in formation could survive in an orbit around the Earth.

The Moon is the only natural satellite of the Earth and revolves around the planet at an average distance of approximately 385,000 kilometers. With a diameter of less than 3500 kilometers, the surface full of craters of the rocky object is one of the most recognizable objects in the sky. A left orbit of our planet takes 27.3 terrestrial days to the Moon, the same amount of time that the satellite orbits once on its surface. As a result, half of the surface of the Moon looks perpetually at the Earth. The other half (erroneously known as the dark side of the Moon, despite receiving the same amount of solar light as the more familiar side) was finally seen for the first time in 1959 when the late Soviet Luna 3 emitted a granular set. de photographs

Esta orbit’block por mareas’ es el resultado de que la Tierra y la Luna tyran una de la otra, ralentizando la rotation de cada una. The Earth’s own rotation se ha visto afectada de manera similar por el efecto de braking de la gravity de la Luna, agregando alredero de 1.4 milliseconds a nuestro día cada siglo. Al mismo tiempo, la Luna se está alejando de nuestro mundo gradually, agregando desde unos pocos milímetros hasta casi 30 centimeter a su distancia orbitale every year. Cuando se formó hace unos 4,500 million de años, la Luna estaba 16 veces más cerca, asomando en el cielo unas 24 veces más grande.


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