Distant asteroid calamity shaped life on Earth 466 million years ago - SABC News - Breaking news, special reports, world, business, sport coverage of all South African current events. Africa's news leader.

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Distant asteroid calamity shaped life on Earth 466 million years ago READ HERE: sabcnews

Scientists on Wednesday said dust spawned by a gigantic collision in the asteroid belt between Mars and Jupiter 400 million years earlier triggered an ice age on Earth that ushered in a significant increase in marine biodiversity.

The inner solar system was filled with enormous amounts of dust after an asteroid more than 90 miles in diameter was struck by a smaller object perhaps 12 miles wide, the researchers said. It was the solar system’s largest-known breakup event in the past 2 billion years. Another cooling mechanism was that the iron-rich meteoritic dust fertilized large parts of the ocean surface leading to increased plankton productivity and drawdown of atmospheric carbon dioxide, added Birger Schmitz, a geology professor at Lund University in Sweden and lead author of the research published in the journal Science Advances.

After noting the dinosaur-demise event caused by an asteroid perhaps 6 miles wide, Schmitz added, “For the first time, scientists can now present another example of how an extraterrestrial event formed life on Earth.”

 

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No...our Dna was stolen

The world is not that old and no it was not by accident.

Not true

Order does not come by accident

Based on a lot of assumptions, making this a relative truth but absolute truth still waits to be discovered

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