Time Travel and the Cosmos

From the recent years time travel has been considered as a very well known ingredient of a science fiction novel or movie. The famous science fiction writer H.G. Wells first introduced the concept of time travel. From then until now many scientist and theoretical physicists have been trying to achieve this target and since then they are coming closer and closer to achieve the goal. In this paper we are trying to combine the theories of relativity and cosmology and formulate a combine theory. As, it is always said to know the future, one has to know what has happened in the past. In this case also we shall learn about the birth of the universe, the concept of dark energy, dimensions and we will try to go beyond the fourth dimension. Einstein once said "If u can't explain it simply you have not understood it well." Therefore our main focus is that all the concepts are easy to understand from the perspective of beginners as well as the masters of this field.