Time was really first described as tangible when Einstein described space time in his theory of relativity. Before that time was thought to be an idea made by humans on earth for humans on earth to make life more organized. Einstein showed that the dimensions of space were woven with another dimension; time. This “Space Time” is thought to be a multidimensional fabric that supports all matter in the universe. If an object is big enough it can stretch the fabric of space time which will then cause a gravitational pull.
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What is a fabric? 
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It’s material woven together in a particular pattern. If you zoom in on a fabric enough, you will see the holes and spaces in between the woven materials. So, since space time is a fabric, shouldn’t there be holes and spaces in between dimensions or times that are woven together?
Well, it is a basic physical principle that NOTHING is flat or solid. This principle applies to all matter.
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Take glass for example, to our weak eyes, it is smooth and flawless, but under a powerful microscope plenty of cracks and crevices can be seen. If you zoom in further, there will be even more and more cracks and crevices. If the naked eye could see atoms, we would see that there is a lot of space in between the nucleus and electrons. Because of this space between the nucleus and the electrons, the atoms are not completely solid. Therefore, there will always be space in between the particles so the physical principle that nothing can be flat or solid is true. So, if this is true for all matter, shouldn’t it be true for time?
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The answer to that question is yes. There are tiny crevices, wrinkles, and cracks in time. At the smallest of scales, smaller than molecules, smaller than atoms, is a place called the quantum foam. The quantum foam consists of space and time and there, wormholes are found.
Tiny tunnels or shortcuts through space and time constantly form, disappear and reform in the quantum foam. The picture properly shoes what a wormhole does to the fabric of space time: it makes a tunnel that links two separate places and two separate times. So, one must ask the question when thinking of wormholes, can you time travel through one? Sadly, these time and space tunnels are only a billion trillion trillionths of a centimeter across, so many of the molecules that make humans function would not fit through. However if we could focus enough energy on one wormhole that scientists miraculously found, then couldn’t we hold it open and possibly enlarge it so that a human or even a spaceship could pass through?
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It seems to be a concept straight out of science fiction movies like Star Wars that we would be able to enlarge a worm hole enough to travel through it to a different space and time. But maybe one day, we will be taking wormholes to visit out of state relatives instead of airplanes.
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