We often look into the sky and ask, "What is out there?" and often, "Are we alone?" 

These puzzling questions themselves have mystified huamnkind for centuries. It was said that organic molecules accumulate in Earth's seas. As their concentration increased, collisions between molecules in the water joined small molecules into larger ones. Water was important for this process, because it speeds up the chemical reactions by facilitating collisions between molecules. 

Well, it slowly evolve into complex molecules like DNA and RNA. This is one of the many theories brought forward on how life is formed. So, how does all these linked together with life in outer space. logically, most people refused to believe in aliens and intelligent life forms in outer space. Much like people who think that earth was flat a few centuries ago. (just joking.) 

However there is few, or little evident to prove that there are intelligent life forms out there. We are only going to discuss a few of the evident quoted by people who believe life in outer space.

First of all We, yes we, are evident of life out there. So how do we get into the picture? Firstly, if life forms can be form on this tiny rock (earth), why can't there be life form on some other rock in space? Many critics would claim that we have sunlight, liquid water, and other conditions like oxygen. But, this no longer holds true. This can be proved by diving into our small little ocean. The life forms in the deep sea does not depend on oxygen, they don't even has sunlight, so how do they survive? Recent studies shows that they depend on sulphur compound for both energy and food. So, oxygen, sunlight and water is out of the picture for life form to be formed. Which indirectly means that life forms does not need sunlight, oxygen and water to begin with, so earth will not be the only planet with life form as the conditions on earth is not needed.

 Another group has a different view. They cited, count the number of stars out there (billions and billions) in our galaxy, milky way. Then count all the stars in all the galaxies, then the universe, now count the planets of every star systems (recent research shows planets in other star systems.). And finally, consider the chance of another planet which will have conditions exactly, or nearly, the same as the conditions on earth. The answer, numerous. Of course, this is a exaggerated estimation, but it also have some truth in it.

In the pursue of the truth, The SETI , The Search for Extraterrestrial Intelligence, was set up. Their main goal is to analyzes all the radio signal receive from outer space and process them to determine whether they are created by intelligent life form. They labeled each radio waves after LGMs (short for little green man) They need your help, ok, not yours, your computer. They have a program which, they send complex mathematics equations to your computer and your computer will process them. All u need is to download a program, and u get to see all the numbers floating across your screen without understand a single meaning out of them. 

Goto http://www.setileague.org/ or

http://php.ucs.indiana.edu/~foxd/home-seti.html

The plague, carried by pioneer 10, 11, when they were send out of the solar system after rendezvous with some of the planets in the solar system. Its propose was to help aliens to locate us... Shouldn't we try locating them? 

We are the evident

The large universe.

The SETI