American scientists have recently hypothesized that involve the asteroid belt - clusters of small celestial bodies that are between Mars and Jupiter, in the origin of life on Earth.
As suggested Astrophysics Rebecca Martin and Mario Livio, on our planet an important role in the very existence of life plays itself now is not so much as its location relative to the Earth, the site of NASA.
The gas giant Jupiter, as explained by experts, is right behind the "snow line", so called plot, for which the water does not evaporate in the solar system because of the sun, and is in the form of ice.
Due to excessive size and gravity of Jupiter next to it there is no other planet has arisen, however, were able to fly to Earth asteroids with water, it means bringing on rocky planet liquid suitable for the emergence and subsequent development of life.
An important factor in this was also the location of the asteroid belt relative to Jupiter. If a gas giant in its movement did not cause disturbances in the belt, it would be too dense and "heavy."
But too intense movement Jupiter asteroid belt could just "flash", knocking them to the orbits and scattered, so well located on the third planet from the sun is not got no water would.
Scientists claim that according to their theory, life is now only need to look at the planets, star systems, where research has confirmed the presence of a similar gas giant. On one condition - for alleged habitable planet will be characterized by approximately the same location as that of the Earth.
Similar conditions peculiar to only 19 of the 520 already discovered by astronomers star systems.