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Physicist Stephen Hawking , who many consider for the smartest man in the world in the documentary film by Discovery Channel reveals what it would aliens look like.Hawking is sure that life exists beyond Earth in different forms, perhaps even in our solar system.

Namely, under the frozen surface of Jupiter's moon Europa could be a layer suitable for life.The appearance and behavior of individual aliens, Hawking has performed the conditions of the various planets such as geological features, climate and atmosphere. His ideas and calculations were visualised through computer graphics and for the first time were shown in the documentary series "Into The Universe".Hawking said that in space there are nearly 100 billion galaxies, each of them has more than hundreds of millions of stars around which planets circling, for which the probability that life developed only on Earth is extremely low.

"My mathematical mind makes me completely rational to think about aliens. A challenge is to discover how they look the most depends on which feed and live in such circumstances. "Physicist claims.

Hawking believes that there are vegetarians and meat eaters and believes that some of them have legs and eyes that see in front of them.Furthermore, 68-year-old physicist thinks that somewhere there are things that are very similar to animals with bioenergy and which can produce its own light, and that they could live on Jupiter's moon Europa.Life of planets that temperatures are around minus 10, however, have radically different physiology. Hawking is assumed that the life of these planets is very slow.