Dangerous Atmospheric Conditions 2017-09-27 10:30 pm There it is again reporters reporting dangerous situations as Stunning. Asteroid coming really close is called Asteroid 2012 tc4. Just a few days ago, a huge fireball was seen in Arizona. beautiful or dangerous https://t.co/SFnVXQSkwk — megatrndz.com (@megatrndz) September 28, 2017 So in an article by phys.org, it indicates that giant meteorite impacts have triggered earth's subduction events in the past. "Our results indicate that giant meteorite impacts in the past could have triggered events where the solid outer section of the Earth sinks into the deeper mantle at ocean trenches – a process known as subduction. This would have effectively recycled large portions of the Earth's surface, drastically changing the geography of the planet," explained lead author Associate Professor Craig O'Neill from Macquarie University. Read more at: https://phys.org/news/2017-09-large-meteorite-impact
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