The newcomers can easily be among us. Only we, for various reasons do not notice. Either unable to find either not do the necessary efforts. And the people themselves may be of extraterrestrial origin of genes, not conjecture this. Aliens are somewhere nearby. Alas, the green man with extraordinary technology, we are not talking. According to the aforementioned scholars, these aliens are likely to be primitive microbes; we have emerged about 4 billion years ago.
At that time, the Earth, as we know, has been bombed meteoric and giant asteroids in which certain forms of life may have arrived on Earth from space and modest living next to us.
The basic idea is that if life easily and quickly formed, and agree with that many astrobiology, of course, on Earth it was formed more than once. From what we know about the early period of life on Earth, it appeared rather quickly, as soon as the conditions for it have been appropriate. Therefore, we can easily assume that if life arose here on Earth, with a probability of 95% this happened two or three times or more. Who knows? ".
Scientists believe that the bombardment of the planet may have resulted in a number of discontinuity "experiments" in which life arose and destroyed subsequent hail meteors and asteroids.
