Recently, I had come across with an interesting article about alien. According to an astrobiology scientist from UK, human and all earth being are actually alien to this planet. From his research, he claims that there is an overwhelming evidence, which shows that all living matter on earth originate from outer space.

He, who also at the same time a professor from Cardiff University, indicates that the first group of “life spore” was send to earth through comet about 3.8 billion years ago. After the collision of the comet with earth, some microorganism which survived the crash evolved to other higher level organism through time.

He admitted that the evidence from his research does not solve the question of the origin of all living matters, since we still don’t know how the first creature was created. There are a few things not clear and questionable in his statement. For instance, how does the microorganism survive on comet for such long time in space, since travelling from a possible nearby planet with living matters might spend more than hundreds light years. Furthermore, possibility of a comet hit a planet is quite low, some more a planet with suitable living condition for the microorganism.

Frankly, the explanation is quite similar to Evolution, a movie filmed in 2001, directed by  Ivan Reitman. The statement is quite possible, but there are still a few vital explanation needed to be made, before it is accepted as a theory.

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