Earth's oldest asteroid strike linked to 'big thaw'

Scientists have discovered that the first asteroid to hit the Earth struck at Yarrabubba, in the outback of Western Australia. It happened around the same time as the end of a global deep freeze known as "Snowball Earth." Researchers determined that the crater is around 2.229 billion years old, meaning that it is roughly 200 million years older than the impact of the asteroid we originally believed to be Earth's first impact. 

This is pretty cool because its like extremely hard to imagine a time when the Earth was completely frozen. And also, an asteroid helped to thaw the Earth out. 

 https://www.sciencedaily.com/releases/2020/01/200122100546.htm

Comments

  1. AnonymousJanuary 24, 2020 at 6:01 AM

    Its crazy that scientists were able to figure out that an asteroid hit the Earth that long ago. The technology that had to be used to figure this out must have been insane.

    ReplyDelete
  2. AnonymousJanuary 24, 2020 at 6:33 AM

    I agree Timbo. Discoveries like these also kind of scare me because it means that they could possibly happen again. Imagine what kind of damage even a medium sized asteroid could have on the earth today. Cities, countries, or even the world could be absolutely destroyed by an event like this.

    ReplyDelete

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