It is not end of world ... It is about the beginning of the universe B.Satyanarayana, Department of High Energy Physics Tata Institute of Fundamental Research Mumbai Man is always curious to know about the things around him - living or non-living. The curiosity has grown over the decades to probe deeper into what all things made off. One such complex machine which can help us study what is the ultimate building block of matter and what is the ultimate building block of matter and what gives mass to the building blocks, went into operation last week. This scientific marvel took about 25 years to build for thousands of scientists world over. It will also create conditions that existed at the time of Big Bang when we all believe this universe began. Unfortunately, this important achievement was marred by rumours and myths that world will come to an end with switching on this machine. We will learn about machine, it main purpose and what science we can do using it. We will also discuss about the rumours and show why they are baseless.