The discovery of a massive crater formed by the impact of a meteorite more than 3.5 billion years ago is changing the way ...
This is the 9-km wide (5-mile) Nadir Crater. It’s a massive impact crater ... have come to seeing something like this is the 1908 Tunguska event, when a 50-metre asteroid entered Earth ...
It happened in Tunguska, a remote forest area in the middle ... If it was a meteor, there would be a crater and meteorite fragments. However, there was no crater. And there were no fragments.
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