Earth is a planet made up of a mixture of oxygen, nitrogen, carbon dioxide and many other gaseous elements that created and supported life as we know it. The universe is a vast space made of matter ranging from the smallest cosmic particle to an enormous galaxy. Inside one of billions of galaxies lies planet Earth, which is one of 7 planets in the Milky Way, all orbiting a star. Based on what human life is aware of, Earth is the only residence of intelligent life in the universe. Could planet Earth be the only planet capable of supporting intelligent life, or are there other planets with a similar chemical composition capable of doing so? Or could it be that there are other elements unknown to humans that can create and sustain what we consider “intelligent life”? If possible, would these living beings be somehow similar to humans or very different beyond imagination? These are questions that scientific research can only analyze and attempt to answer. According to USA Today, astronomers from the University of California-Berkeley and the University of Hawaii estimate the number of Earth-like planets...