DO ALIENS REALLY EXIST?

The topic on aliens!! Isn't it a very creepy one.. First of all who are aliens? Aliens are the living beings who do not belong to our planet Earth. But do aliens really exist ? Till now, we do not have any proof of existence of life on any of the planets in our solar system or in the outerspace(beyond our solar system) . But by now, we have founded some amount of water on Mars and Moon. Water is one of the most basic component for holding life. So there is a possibility that in future there can be start of a new civilization.

 As of current records, only Earth is capable of supporting life in our solar system . Other than our solar system, there are thousands or millions of other solar system present in the Universe. So there can be millions of similar planets like earth which can support life. So there can be a possibility of existence of extra-terrestrial life. There are a number of UFO(un identified flying objects) sightings all around the world but the international organisations always deny existence of any such thing.

But if it is true, why haven't we met any of them? Our planet is at the edge of milky way galaxy, so that can be a reason that other civilizations  are not interested in travelling such a great distance to reach us.

Several people across the globe have claimed that they had been communicating aliens from past a century. In United States of America, there is a secret military base named as Area 51 which is situated at south of Nevada . People have seen UFO's flying over that area many times. It is believed that aliens are present there but American government is still not ready to agree on this topic

In 1961, Santa Cruz and astrophysicist  Frank Drake devised a Drake equation as a scientific dialogue on search for extra-terrestrial life in milky way galaxy. It is argument used to estimate number of communicative extraterrestrial civilizations in the milky way galaxy.

N = R* . Fp . Ne . Fl . Fi . Fe. L

N = Number of milky way civilizations already capable of communicating across interplanetary space

R* = Average rate of star formation.

Fp= The fraction of those stars that have planets

Ne= Average number of planets that can potentially suppourt life.

Fl= The fraction of planets that support life

Fi= The fraction of planets with life that evolves to become civilizations.

Fc= The fraction of civilizations that develop a technology to broadcast detectable signs of their existence in space.

L= The length of time over which such civilization broadcast detectable signals into space.

 If you'll ask for my opinion , I believe that someone is there in space who is watching us.

By now I hope you guys are able to understand about aliens and their existence. Remember to share this blog with your family and  friends . I post such informative posts everyday so don’t miss any of them . You can also follow me up on google plus . Just have a look at the right side and you can see my profile.

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