Universe Today -
18 May 2016 22:52

New evidence found in northwestern Australia suggests that a massive asteroid, 20 to 30 kilometres in diameter, struck Earth about 3.5 billion years ago. This impact would have dwarfed anything experienced by humans, and dinosaurs, releasing as much energy as millions of nuclear weapons. Impacts this large can trigger earthquakes and tsunamis, and change the geological history of Earth. The evidence was uncovered by Andrew Glikson and Arthur Hickman from the Australian National University. While...
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