Remarkably, when we returned to the vehicle, we all thought we'd found the same thing: shatter cones. Shatter cones are beautiful, delicate branching structures, not dissimilar to a badminton ...

Johnson and his colleagues identified the crater thanks to cone-shaped chunks of rock known as "shatter cones," which form when the shock waves from a meteorite impact propagate downward.

Scientists have have discovered the oldest meteorite impact crater on Earth, in the very heart of the Pilbara region of Western Australia.