- 22 Feb 2020 19:33
#15069100
Researchers say they have identified the world’s oldest asteroid crater: a 43-milewide scar in Western Australia’s outback that was created more than 2 billion years ago. This massive impact may have brought an end to the ice age known as Snowball Earth, when most of the world was covered with ice sheets up to 3 miles thick. The Yarrabubba impact structure is barely recognizable as a crater, because wind, rain, glaciation, and plate tectonics have scraped several miles off our planet’s surface over millions of millennia....
source: http://www.vikilix.com/2020/02/22/the-w ... id-impact/
source: http://www.vikilix.com/2020/02/22/the-w ... id-impact/