The biggest question that human kind is seeking answers since ages is ‘are we alone in the universe?’. The quest for search for extraterrestrial intelligent life is endless, the curiosity is immense and research is countless. We have been sending probes, bursting out signals at different directions, yet there is not enough evidence about the presence of intelligent alien life, Out of this endless cosmic space, a signal was detected for 72 sec in 1977 and was never heard since, this was called the WOW! Signal,. The Wow! Signal was detected using a radio telescope. A radio telescope collects weak radio light waves, amplify them and make it available for analysis, We use them to study planets, black holes, starts and other astronomical objects. These can also be used to transmit radio light of the planetary bodies. The big ear radio telescope was installed in Ohio state university has a massive size probably the size of three football fields. This radio telescope started scanni