You’d have to go to the moon or Mars to find a bigger impact crater than the one discovered in Greenland.
An asteroid 30 kilometres across smashed into Greenland three billion years ago, creating a crater that was once 25 kilometres deep and 600 kilometres wide.
That dwarfs the oldest known impact crater on Earth, the Vredefort crater in South Africa, both in age and size. The Vredefort is about two billion years old and about 300 kilometres across.
Or you kidding me? What are these scientists going to come up with next? Asteroids? How can stars that are really windows in heaven be falling rocks?
This is crazy.