KOMPAS.com – Sixty-six million years ago, a huge celestial body struck Earth A cold blaze to destruction Dinosaur.
The theory that is being developed so far is that this is the sky Asteroid Derived from the main belt Solar System We.
However, a new study reveals other findings leading to the extinction of dinosaurs.
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As quoted from FISA, on Wednesday (17/2/2021) Harvard University astronomers showed the results of their analysis that the celestial bodies on Earth are not an asteroid. Comet.
Comet The so-called long-lived comets are made up of icebergs the size or size of mountains.
However, according to researchers, Jupiter is responsible for colliding with our planet.
“Jupiter is very important because it is the largest planet in our solar system,” said Amir Siraj, lead author of the study.
Jupiter acts as a kind of pinball machine that orbits the long-lived comet and plunges it deeper into the Sun.
It is also called long-lived comets Sunscreen Because it passes so close to the sun, it takes about 200 years to orbit the sun.
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The comet is cooler than the asteroid because it originates from the freezing point of the outer solar system.
But at one point the comets had a big tidal wave facing the sun.
“As a result, the comet is experiencing enormous tidal forces, and the largest parts are splitting into thousands of fragments. Each fraction is large enough to form a crater the size of a chixulub, which has led to the extinction of the dinosaurs,” Siraj said.
Another evidence of a cometary collision is the carbonaceous concrete structure found in the Chicksulab crater.
According to researchers, most comets have this content.
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Carbonated concrete is also found in other craters on Earth. For example, in the Vredafort crater in South Africa and in the Zamanshin crater in Kazakhstan.
In addition, researchers hope to learn more about long-term comet tide disturbances.
This is because researchers say that a similar impact could occur every 250 million to 750 million years.
“You never know when the next one will come. The best way to find out is to look at the sky,” said AV Loeb, another researcher involved in the study.
These findings were published in the journal Scientific reports.
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