Hi Friends, I am Alen, doing research about light. I have submitted my thesis which contains few finding about light and utilizing maximum solar energy to produce electric energy from few square feet area. I got permission from my adviser to discuss on internet forum. I hope your commands and suggestions will help me in any other ways. Now, I would like to give two of them. 1. Light travels unlimited distance if the source is still alive (later the term "travel" will be replaced by "appear"). 2. Light is not a carrier to bring the image copy of event. I hope we can discuss the 2nd point at the moment, it will help me to explain the first point. Light is an emission of electron and presence of photon. Photon helps to view the object behind the photon (source) or after it reflects on any object. It just creates a way to see the objects. Emitted photon tries to escape from the atom, due to the gravity it absorb by another atom and excess energy cause the emission again and same or new photon release. This is the simple description of light. There should be some loss of energy during the process and it is related to point 1 (discuss later). Here I explained my adviser, the source image copy or reflected image copy are not stored frame by frame anywhere in this process. It means whatever we are seeing that happens at the moment of viewing not previous moment copy. I tried to explain him that it is related to vision. If we have very powerful telescope and it able to see any faraway galaxy, we can. Since the light of the galaxy is already appeared, we can see it and it not necessary the light to reach us. It means we are seeing at the same moment of the happening. If we are seeing a star, it is live at the moment. Light disappear at the same moment when the source of light disappear. Please give your points and discuss more.