The subject of time dilations has always fascinated me. Sometimes the thought experiments can get confusing but there is one that always baffles me even though it should be simple. According to the theory time is slower the closer we are too dense matter. In other words time is slower on earth than it is 100,000 miles out in space and time speeds up the farther you are away from density. This is the part that gets confusing. I have also read that from our perspective on earth if we viewed activity far out in space we would see things happening slightly faster?? If we viewed other activity even farther out, would we see that activity at an even faster time frame?? So if there is any truth in the above statements I have a question: If we observed a photon approaching earth at what distance do we first see it? Can we see it far out in space where time is faster or not until it hits our eyes or a combination? If we can see it as it comes in what will it look like as it comes in through the slowing time dilations? Would it appear to slow down the closer it came to density? If you in space between galaxies away from density would everything appear blue shifted?