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Home / Science / Asteroid Discovery: The collision of an asteroid larger than the dinosaur killer has given rise to new life Science | news

Asteroid Discovery: The collision of an asteroid larger than the dinosaur killer has given rise to new life Science | news



The study was published in "Science Advances" under the direction of Birger Schmitz of the University of Lund in Sweden. The work suggests that a collision with a distant asteroid about 470 million years ago produced enough dust to cause an ice age on Earth. During this time, known as GOBE (the great Ordovician event of biodiversification), biodiversity, especially life in the sea, increased noticeably.

The asteroid that the study claims has collided with another asteroid beyond Mars' orbit may have resulted in enough dust to cover the earth and then dramatically cool the planet.

Birger Schmitz, who led the study, told The Observer, "We know about the 10-kilometer-long asteroid that crashed on Earth 67 million years ago and killed the dinosaurs, but this event was quite different.

"It occurred about 470 million years ago when an asteroid 3000 times larger than the dinosaur killer was destroyed in a collision with another asteroid beyond Mars' orbit.

"It filled the solar system with dust and caused a strong dimming of the sunlight on Earth. "

READ MORE: Asteroid Shock: Space Collision set off Ice Age on Earth

He added," The sedim substances fixed at this time are rich in the helium-3 isotope that they are only on could have taken the path through space. This is a crucial hint.

The University of Kentucky scientist Rebecca Freeman, Lexington, supported the idea.

She told the magazine & # 39; Science & # 39 ;: "It's not necessarily the answer to every question we have about Gobe, but it certainly carries a lot of observations."

Philipp Heck, an author of the study also said, "We have shown that what happens in the solar system can have a major impact on the Earth. Extraterrestrial events are not always destructive. Many people think meteorites are just dinosaur killer, but we found the opposite.

To speed up the mission, UCF is donating $ 1

9 million – though it is believed that hunting for NEOs will be difficult. [19659003] NASA has been instructed to find 90 percent asteroid by 2020, at least 140 meters tall.

NASA Administrator Jim Bridenstine warned that the likelihood of a strike is greater than people believe

The NASA administrator said, "We need to make sure people understand that it's not about Hollywood, it

"It's ultimately about protecting the only planet we know of today, host life – and that's planet Earth. "


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