Washington:
A rocky object called Benu is classified as a near-Earth asteroid, currently about 186,000 miles (299,000 km) away and is creating its nearest view to the Earth every six years. This can come closer in the future, scientists estimated one -2,700 chances of collision with Earth in September 2182.
So what will be Benu attack our planet? Well, it will not be very beautiful, according to new research, according to new research based on computer simulation of an effect by an asteroid, with a diameter of about three-tenth miles (500 meters) like Benanu.
In addition to immediate devastation, it was estimated that such an effect would inject 100–400 million tonnes of dust in the atmosphere, which would cause disruption of climate, atmospheric chemistry and global photosynthesis for three to four years.
A postdotoral research Fellow at IBS Center for Climate Physics (ICCP), Lan Dai said, “Solar diming will cause a sudden global ‘effects’ due to dust, in which low sunlight, cold temperature and surface rain will be reduced Will go. ” Puusan National University and Prominent Writer of Studies in South Korea were published this week in Journal Science Advanced.
In the worst situation, researchers found that the average surface temperature of the Earth will decrease in about 7 degrees Fahrenheit (4 ° C), average rainfall will fall by 15%, the plant will decrease by 20-30% photosynthesis and planets. A reduction of 32% in the ozone layer that prevents harmful solar ultraviolet radiation.
Researchers stated that a benu -achar object on the surface of the earth’s land – a medium -sized asteroid – a powerful shockwave, earthquake, forest fire and thermal radiation will produce a gap pit and a large amount of debris up Will take to
According to Axle Timmerman, a climate physicist and senior writer of ICCP Director, large amounts of aerosols and gases will reach the upper environment, which will affect the climate and ecosystem for years.
He said that adverse climate conditions prevent growth of plants in the land and oceans.
“Unlike rapid decrease and two years of long recovery of plants on the ground, the plankton in the sea will be cured within six months-and even with the unprecedented diet (a type of algae) Growth in the ocean, “said Dai.
Researchers stated that stratosphere lacks severe ozone – the second atmospheric layer when you go upwards – due to strong warming due to solar absorption of dust particles, the researchers said.
The asteroid collision of this magnitude can cause huge loss of human life, but this calculation was outside the scope of study. Dai said that potential deaths “mainly depend on where the asteroid effect is.”
Scientists know a lot about Bennu, which is considered a “pile of debris” asteroid – a loose amalgamation of rocky material rather than a solid object. It is a rocky residue of a large astronomical body that was formed near the morning of the solar system about 4.5 billion years ago. NASA’s robotic Osiris-Rex spacecraft traveled to Benanu and collected rock and dust samples for analysis in 2020.
A study published in January showed that some chemical manufacturing blocks of life have been bored in Benu’s samples, there is strong evidence that asteroids may have given seeds to the initial earth with raw ingredients that can have seeds that of living organisms Promotes emergence.
Asteroids have sometimes hit the earth on their long history, often with the results of the Holocaust. An asteroids, an asteroid of 6-9 miles (10–15 km), was away from the coast of the Yukaon Peninsula in Mexico 66 million years ago, erased about three-fourths of the world species and abolished the age of dinosaurs.
In 2022, NASA carried out a proof-practical planetary defense mission using its robotic dart spacecraft, which to change the trajectory of asteroid demorphos, to do so in the future if someone with an eye towards doing so in the future It appears on the syllabus of confrontation.
“Probably a bennu-shaped asteroid will attack Earth, even smaller at 0.037%. Even though the smaller, the potential effect will be very serious and possibly will be very severe and due to large-scale long-term food insecurity on our planet and climatic conditions Which will be the same. Timerman said that in the last 100,000 years only a few biggest volcanoes have been seen.
“So it is important to think about the risk,” said Timerman.
(Tagstotranslate) Asteroid (T) Bennu (T) Space
