Renowned scientist Stephen Hawking has said that within the next 100 years humans have to find a new planet and colonize it. Earth will become uninhabitable due to either the effects of drastic climate change, destruction from nuclear war or genetically engineered viruses. Time is running out. The only option is to accelerate space exploration and hope to find a planet to inhabit. Earlier the reason for space exploration was to see if we could find intelligent life beyond earth. This was purely to satisfy the theory of evolution. If there are earth like planets in the universe, life would have evolved elsewhere as well. We have the means of tracing intelligence through some signatures of technology. The so-called sightings of UFOs has further increased the curiosity of outer space. There is no doubt that we are on a mission to destroy earth, pretty fast. The signs of this destruction are for all to see. Glaciers disappearing at a rapid rate, global temperatures rising rapidly, water...