Nevertheless,
What risks if asteroid hit:
A rare event that could release an amount of energy comparable to the explosion of. However, a nuclear bomb. For example, For several months. However, astronomers from around the world have carefully observed the trajectory of the asteroid 2024 YR4, which could bring it to our region of the solar system in the near future.
Discovered in December 2024 by a Chilean observatory. Therefore, this imposing celestial object 55 meters in diameter could thus collide with the Moon in December 2032. Similarly, NASA specialists recently evaluated 4.3% that such an event occurs.
NASA rules out any possibility of a disaster scenario – What risks if asteroid hit
If the asteroid 2024 YR4 struck our natural satellite. Similarly, what would be the consequences? Therefore, Should we fear repercussions for the earth? However, A priori these would be minimal, if we believe the scientists who have looked into the question.
Immediately dismissing the possibility what risks if asteroid hit of a disaster scenario. NASA notably assured that in the event of a collision in December 2032, “this would not modify the orbit of the moon”. However, the question of risk arises more for debris that this collision could generate.
Every day. dozens of asteroids hit the moon – What risks if asteroid hit
In an article published in 2019, Science & Vie recalled that “asteroids hit the moon every day, up to twenty impacts per hour”. However, in the vast majority of cases, these celestial bodies weigh only a few grams. The tiny residues of these collisions therefore remain trained by the orbit of the Moon.
Indeed. as the specialized magazine specifies, “so that a debris comes from the lunar attraction, its speed must be greater than the exhaust speed of the moon … which only occurs during the fall of asteroids of several hundred meters. that is, statistically, every thousands of years at most.”
Asteroid 2024 YR4. a special case
With its 55 meters in diameter, the Asteroid 2024 YR4 does not enter the category of these giant meteorites, but it remains much more imposing than most celestial bodies that hit our natural satellite every day.
By crashing into the moon. he would therefore create an exceptional event, with an impact “comparable to a large nuclear explosion in terms of quantity of liberated energy”, according to Paul Wiegert, astronomer at the University of West Ontario (Canada), quoted by Sciences et Avenir.
The impact could project into space “up to 100 million kg of material”
The main author of a study recently subject to the magazine Astrophysical Journal Letters. Professor Wiegert tried to assess, by means of different simulations, the consequences of the possible collision to come between the asteroid 2024 YR4 and the Moon.
According to the conclusions of this study. the impact could project “up to what risks if asteroid hit 100 million kilograms of material from the lunar surface”. If the majority of these debris would remain prisoners of the Moon orbit. a part could be attracted by earthly gravity.
10% of debris could be attracted to terrestrial gravitation
According to the study led by Paul Wiegert. this situation would particularly be to be feared “if the asteroid touched the visible side of the Moon”, which has about one in two chance of happening in the event that the asteroid is indeed struck by the star in December 2032.
In this case, which is therefore approximately 2.1% chance of arriving. the researchers estimate that around 10% of the debris from the collision would be attracted by terrestrial gravitation and could therefore enter the orbit of our planet.
No major risk. but “1000 times more shooting stars than usual”
However, this salvo of small cosmic debris would in no way constitute a what risks if asteroid hit major risk of collision with the earth. Meteorites should logically disintegrate in the atmosphere even before reaching the surface of our planet.
As France Info indicates. this meteor rain would be particularly spectacular, showing “1000 times more shooting stars than usual”, but it would therefore not represent any danger for humans and other inhabitants of the blue planet.
A danger for artificial satellites
According to the study mentioned above. the only damage that this collision could cause on our scale would concern the artificial satellites which are currently revolving around the earth. Located outside of our atmosphere. the latter could be impacted by the meteor rain following the collision between the asteroid 2024 YR4 and the moon.
“A centimeter with a centimeter in diameter traveling to tens of thousands of meters per second is like a ball. ” alerts Paul Wiegert. According to the astronomer. some satellites could thus be seriously damaged what risks if asteroid hit if they were crossed by these celestial “bullets”, irresistibly attracted by earthly gravitation.
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