According to Newton’s theory of special relativity, space and time are defined in different axis, and theoretically, matter and timeframecan be altered, to say the least. And heavier the matter or mass of the object in space, greater is its effect on time, and vice versa. Let me give you one example. Our satellites, Along the gravitational perimeters of the earth, time run slower than what it does at the surface of the earth. And so, the satellites are programmed in accordance with the slower time frame.
Some theories, most notably special and general relativity, suggest that suitable geometries of spacetime, or specific types of motion in space, might allow time travel provided these geometries or motions are possible. In technical papers, physicists generally avoid the commonplace language of "moving" or "traveling" through time and instead discuss the possibility of closed timelike curves, which are worldlines that form closed loops in spacetime, allowing objects to return to their own past, but the physical plausibility of these solutions is uncertain.
Backwards time travel seems to be a more modern idea, but the origin of this notion is also somewhat ambiguous. A very big and simple problem is the Grandfather paradox. The grandfather paradox is a hypothetical situation in which a time traveler goes back in time and attempts to kill his grandfather at a time before his grandfather met his grandmother. If he did so, then his mother or father never would have been born, and neither would the time traveler himself, in which case the time traveler never would have gone back in time to kill his grandfather. Again, the very fact that time runs slower in outer space gives rise to the curious notion that there may be some place in space where time stops or ceases to have its effect. But again, in space gravity is present, so there must be a centre to this gravity. But again, post newtonian astro physics considers space to be infinite. So, there can be infinite centres of gravity.
We know today, space is filled with something called anti-matter where the axes of space and spacetime are ambiguous. So, these voids, present us with the opportunity of believing that there may be some spaces where time ceases to be. But the very fact that we can have infinite centres of gravity creates a paradox because then every part of the space can theoreticaly be under effect of gravity and this would cause the time line curve to bend. So, since the time line curve can bend, another concept of time travel has evolved, the wormholes. In physics, a wormhole is a hypothetical topological feature of spacetime that would be, fundamentally, a "shortcut" through spacetime. A wormhole is, in theory, much like a tunnel with two ends each in separate points in spacetime.
The theory of general relativity predicts that if traversable wormholes exist, they could allow time travel. However, time connects differently through the wormhole than outside it, and ,moreover, the two ends of the wormhole can have different timelines with respect to the extent of gravitation at that point. So, what may be the consequence of an event in one timeline, may be the cause of another…but this is fundamentally impossible as then it will violate …..
TIME, a no spatial continuous flow in which events occur in apparently irreversible succession from the past through the present to the future. Can this flow be stopped? Manipulated? Tampered with in a way that we see fit? What will we see in both our past and into our future?! These are the questions mankind spend aeons contemplating, staring into the limitless sky and asking is time travel really possible? These are the questions that have intriguged us from generations and will continue to do so, in the near future as well…
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