Time, the everlasting progress of elements changing state or movement. Past, Present and Future are three key parts of Time. Past is what has happened, Present is what is currently occurring and Future is what will happen. These three main factors in Time can be broken down into more detail; for example in the past on March 15th, 44 BC, Julius Caesar was assassinated and in the past Pluto was considered a planet; In the present I am drinking water and in the present Bob down the road is playing sports; In the future Andromeda Galaxy and Milky Way Galaxy will combine into one galaxy and in the future tomorrow night, Bob will take his Canis for a walk. Now, does Time actually exist physically, or is it merely a conception which describes reality? Well, one thing to think about is that Time could be explained simply as motion. As long as motion occurs than "Time" occurs. For this belief would states that Time itself is not real, but that by things moving, it gives the illusion of Time. Now this makes perfect sense at first, however with deeper critique, it can be seen that this simply does not hold as true as one might think it is. For example, let's say I ate an apple yesterday, if there is no Time, that means there is no past, with that being said, did I really eat an apple yesterday, in the past, or not? A man with a rebuttal might say, "Well that is thy memory telling thee that, alas that does not prove that Time exist." The answer to that rebuttal is, does it matter if I have memory of it or not? Did I eat an apple previously, in the past, or not; whether I have recollection of it or not? Now it can be seen with minor scrutiny, that Time in fact, really does exist, we have the past and the future to thank for the proof of that.
'Astronomy' page explores aspects of Astronomy, Philosophy, Spacelore and other topics about The Universe!