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I’ve always felt that there is a very good chance Alien life is already here on Earth just in nano-sized entities. It makes perfect sense for several reasons, the main one being to travel such long distances at such high rates of speed (preferably the speed of light) the smaller you are the better your chances at reaching the speed of light. Civilizations that are advanced to the point where they can travel from galaxy to galaxy most likely are robotic/unlike any thing we could think of. Arthur C. Clarke said at one point that Alien life has probably already visited Earth leaving some type of marker/communication device to notify them when we’ve reached a certain point of evolution. Why not leave trillions of nano-scale/invisible “reporters” to constantly watch our progress?
NGC 2440: Cocoon of a New White Dwarf
Like a butterfly, a white dwarf star begins its life by casting off a cocoon that enclosed its former self. In this analogy, however, the Sun would be a caterpillar and the ejected shell of gas would become the prettiest of all! In the above cocoon, the planetary nebula designated NGC 2440, contains one of the hottest white dwarf stars known. The white dwarf can be seen as the bright dot near the photo’s center. Our Sun will eventually become a white dwarf butterfly but not for another 5 billion years.
believe it or not, this is not photoshopped
yeah… it isn’t a back drop either
click here. :)