well here is something to think about, we have explored around 10% of our oceans on our own planet. We find new species every year in the depths of the darkest parts of the oceans. The universe has millions of galaxies spread across billions of light years. so how can someone say we are alone? Personally i do not believe that the heavens were created and somehow earth is the only planet to have the perfect balance for life. Who knows... maybe there is a planet composed of entirely water, with some wierd squid people like on MIB. just assuming they would not be fans of sushi =P

Nah Other life exists I once sold pot to a alien

We are most likely alone in this world (Along with all the other types of life) but I don't believe that we are alone in the universe.

Its a huge scale, and I find it hard to believe that we can be the only plannet that can have life on it.

I think in this world the human race is the most dominant at the moment. However, i do believe that somewhere out there is another life form. That could one day, possibly visit us. But that's a long shot.

I believe we're not, the universe is just to big for 6billion people