Mysteries remain over Peru meteorite impact

Speculation raged about what caused the crater, found in the Peruvian town of Carancas, near the Bolivian border, with a hydrothermal explosion of gas and even a downed spy satellite offered up as culprits.
It was a rock that fell out of the sky and made a hole in the ground. End of Story," says Lionel Jackson of the Geological Survey of Canada in Vancouver. But some questions still remain.