why dinosaurs became extinct?

A recent study mentions of mass collision in space 160 million years ago caused the extinction of dinosaurs.

Asteroid collision caused the rubble flying solar system, including a large clot that hit the Earth and then swept the dinosaurs.



The team of researchers from the United States and the Czech believe other fragments crashed into the Moon, Venus and Mars and the impact of the blow and then create the holes.

Research conducted based on computer models is published in the journal Nature.

"We believe there is a direct relationship between the events of this collision, the asteroid that produced rain, and the impact of hard knocks that occurred 65 million years ago is estimated to cause the dinosaur extinction," said Dr. Bill Bottke of the Southwest Research Institute, Boulder, Colorado, United States.

Numerous previous studies have discussed the things that seems to be increasing attacks against Earth asteroids for 100-200 million last year, about double the long-term norm.

Dr Bottke and his colleagues tried to prove that the increase was likely triggered by a major disruption of the stone with a width of 170 km in the asteroid belt between Mars and Jupiter about 160 million years ago.