It Turns Out That the World's Oldest Impact Crater Isn't an Impact Crater

In early 2012, an international research team surveying parts of South-Western Greenland announced that they had discovered the oldest impact crater ever discovered on Earth, estimated at 3.3 billion years old. Now, new research shows that the strange geological feature – known as the Maniitsoq structure – is probably the result of Earthly geological processes, …