The argument suggesting life existing on other Earth-like planets has been present since man first looked into space and questioned his own existence and the existence of others like him. Today there are many theories on the existence of intelligent life elsewhere in the universe, but only one theory goes beyond them and into an even larger realm. The contents of this theory, known as the “multiverse” theory, suggest that humans on Earth live within one universe of many others that reside within a primordial vacuum containing many other universes (Jenkins and Perez). Each of these universes possesses potentially different natural constants and physical laws that govern them differently, thus calling forth some logical questions. First,
We live in a universe that is about 46 billion light years old. In a world, as massive as ours there must be some form of extraterrestrial life out in the galaxy. For thousands of years ancient peoples, such as the Greeks, have wondered the same question. Are we alone? As our technology advances, things such as videos and photographs are surfacing of people claiming to see such alien life. Whether it is an unidentified flying object, or if it’s from someone claiming to see an actual alien, there are thousands of people that believe they have seen proof. Some also claim that the government is hiding things behind our backs, like the Roswell UFO incident for example. Though many people refuse to believe in the existence of alien life forms until they see evidence, the fact that multitudes of people have eye-witness accounts, the improbability that we are alone, and the idea that we have thought of aliens so long, bring forth the evidence that proves something is out there.
Throughout history humanity has been fascinated by the existence of extraterrestrial life. Today such ventures are in the development process and the discovery of life beyond our solar system, no matter how primitive, may soon become a huge(important?) scientific breakthrough. The three basic things that are required to consider a place even remotely habitable are water, a source of energy, and organic materials. Habitability also depends on other factors that must also be taken into consideration such as how close the planet is to its star (in the case of our solar system, the sun), how long the water and organic materials existed there, and the size and mass of the planet. One must not confuse habitable with inhabited. The term
James Green discusses in his speech the possibility of there being life beyond earth. Green starts off with a quote that is used in a lot of movies, books and television shows, “Is there life beyond earth in our solar system?” He follows this initial quote with one by Carl Sagan, an American astronomer, “It takes extraordinary evidence for extraordinary claims.” It is important for Green to use these two quotes as attention getters. He hooks the listener with his works and we begin to think if there really is life in our solar system then just on earth.
Exobiology is the science that is concerned with the search for life in outer space; it may be called as astrobiology as well. The search for life in outer space has consumed the imagination of the humankind for long time ago. Nowadays, humankind has made a progress and found major discoveries in the quest for life existence in the universe and outer space because of the advancement of the technology. However, in the past, exobiology was considered as a science without a subject, where the people and other scientists laughed at and ridiculed the famous scientist and biologist Joshua Lederberg when he originated the term exobiology. Some people argue that life exists elsewhere in the universe, however, others believe that life only exist on Earth. A new study reveals that our galaxy, the Milky Way, has 100 billion or so stars, where 17 billion of them are Earth-size alien planets, and probably many more. The huge size of the galaxy increases the probability of life existence in the outer space. Are we alone in the universe? This question has captured the imaginations of scientist, theologians, and astrobiologists. However, they don’t know the answer yet. Understanding the complete definition of life and how life originated, and determining the techniques used for searching for life existence in outer space and evidences found can help to answer the question of “Are we alone in the universe?”
it was discovered that there are other planets like Earth out there that are able to accommodate life forms like our planet. And it is highly unlikely that we are the only living things out there in the big universe
The title of my paper is called, “Life on Another Planet.” The purpose of my essay is to explore the question of do aliens exist? I explained the possibilities that there could be other life out there in space. My conclusion was that in the future scientists could discover a planet where we can move to and live in, and even meet new species of life. As a result, scientists should develop more tools
Those peoples are telling the true, yes, it's been decays of research that we didn’t find anything related to aliens. However, human never give up finding the Extra-Terrestrial, and for once of all, we are getting closer to it. According to Dr. Brian J. Jensen, NASA researcher for Advanced Materials article “Finding Life Beyond Earth is Within Reach” On NASA in 2014. The human’s technology had grown rapidly throughout the year; we have the most advanced telescope within our grasp to thousand of the galaxy. In fact, “These upcoming telescopes will find and characterize a host of new exoplanets -- those planets that orbit other stars -- expanding our knowledge of their atmospheres and diversity (Jensen,2015).” Those exoplanets are our primary source of carbon base species because life depends on the environment. If a planet has the similar pressure, temperature, gravity water, and humidity as Earth, that planet will be most likely to form life. Likewise, it will be the same life form from Earth. Furthermore, “This decade has seen the discovery of more and more super-Earths, which are rocky planets that are larger and heftier than Earth.”(Brain 2015) Meaning that finding Alien is no longer a dream. Super-earth is a planet where they are similar to Earth, but larger and have more
When tasked with choosing a book from the library, I decided to search for books about extraterrestrial life, and more specifically, how the SETI (Search for Extraterrestrial Life) Institute is organized. For my “Writing, Rhetoric and Discourse” course, the goal for the quarter is to create a cohesive argument on any topic of our choice. While I do not have a solid argument as of now, I will be using multiple articles and documentaries to help provide my claim with evidence. However, since the quarter will be very short, I will not be able to read through numerous books for my essay. The book that I chose will be one of the few that I will read and analyze for my argument.
The Search for Extra-Terrestrial Intelligence(SETI) has been searching for life for more than fifty years and have yet to find anything (Waldrop 442). SETI has ran on $2.5 million annual costs from powerful telescopes to hundreds of dishes worldwide and have managed to find no signs of other life forms (Waldrop 444). The search of life outside of Earth remains to be unanswered and now many ask, where are they? Through SETI’s large budget and expensive equipment the possibility of life on other planets becomes very slim. However, the lack of evidence for any possible forms of life does not justify the possibility of life forming in other unobservable places. The possibilities of life formation in other solar systems can be countless. In “Where Are They?,” Nick Bostrom states that there are over 100 billion galaxies in what we can observe of the universe and our galaxy alone has 100 billion stars (Bostrom 2). This alone provides the reason to believe that somewhere in our observable universe there are many planets with similar conditions and probability of life forming. It took Earth approximately 3.5 billion years to allow life to form that started with single celled prokaryotes to humans (Bostrom 3). The prokaryotes only formed after earth provided an ideal state in which life could be formed. It is also known that many of the galaxies contain stars and planets much older than ours (Bostrom 2). This gives endless amounts of time frames in which life of began in galaxies far way or nearby. The points of evolution become countless within each galaxy, yet the visibility of technological life civilizations like ours is nowhere to be seen. This means there is something preventing these civilizations from passing our current level of civilization. This known as the Great Filter, a theory, in which specific steps are prevented in the timeline of the evolution of
Within the article Will We Ever Discover a Twin Earth? 20 Big Questions About the Future of Humanity, I found many of answers to the questions asked very interesting and thought provoking. With my unscientific opinion about there being other life forms in space already formed, I was glad to read Aki Roberge state that she believes that we will discover a twin Earth and that scientists have “found that planets around other stars are far more abundant and diverse than scientists imagined just a couple of decades ago.” The universe being as big as it is, I wouldn’t be able to believe that we are the only form of intelligent life.
Most astronomers and scientists seem firmly convinced of this fact. Although there is not any direct (or even indirect) evidence to support these claims that other sentient life is sharing the universe with us. However, this lack of evidence showing that extraterrestrial life forms exist is not proof that they do not exist. It just does not seem logical that our planet is the only place where life and intelligence could have developed. The odds are billions against life of some form being unique to the Earth only. The Earth is unimportant in the grand scale of things in the galaxy. By this I am referring to its' size and position in the universe. In fact, the American Association for the Advancement of Science suggests that the true question that we should be
With all our knowledge of everything around us, overwhelming as it may be, there are still a lot of aspects that are unknown to even the smartest scientists. Did you know that humans know only 5% of the entire universe? Yes, everything we know about the Earth, the Milky Way, and all the planets is barely even a fourth of what comprises the entirety of the universe. Knowing that, it would be illogical to say that the creatures on Earth are the only forms of life in the universe. Today I will tell you about unidentified object sightings, close
Should we as humans expect to find intelligent life elsewhere in the Universe? There are many reasons for and against this concept, but first we should trace just how our terrestrial life started.
possibility of life existing on other worlds has been the subject of speculation for years.14 In