Last year a meteorite made a hole in almost every newspaper in the world. It was September when he fell from space and crashed through the atmosphere to land in Peru, in view of witnesses totally absorbed. It was the first time that witnesses were able to witness how a crater formed in vivo.
But the reports of witnesses, and analysis of geologists then, they amazed the scientists. This meteorite seemed to have flown much faster than scientists thought possible for such objects, and apparently survived his entry to Earth intact, instead of breaking apart as experts believed should have happened.
"Many people thought this was a hoax," he told LiveScience Peter Schultz, Brown University geólogode who traveled to Peru to examine the crater. "It made sense with what we understand about collisions with such fragile rocks. It is usually this kind of rock are broken into pieces during its passage through the atmosphere, which did not happen with this.
But Schultz was to investigate the impact, along with Peruvian scientists. There he found a crater 16 meters wide near a village called Carancas. He fractured lines in sand grains and compressed mixtures of earth and meteorite. All this enabled him to calculate that the meteorite landed at a speed of 9300 mph.
The meteorite itself was fairly common rock type. Usually this type is usually slow down the friction with the atmosphere it produces, then when it reaches land produces only one hole, not a crater, and less than 16 meters wide.
The mystery is why did not diminish his speed, says Schultz. Some theories say that perhaps while traveling in the atmosphere are melted and transformed, making it more aerodynamic, and thus suffered less friction, then it broke, and his speed has not diminished.
But the mystery is why it does not happen with other meteorites. Maybe the angle of entry into the atmosphere, Schultz speculates, but for now follow the Peruvian mystery crater.