Summary : ' Life On Another Planet '

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

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?”

In the article called “Another Earth” by Alice Savage and David Wiece started with the sharing of the theory that life outside of Earth could exist. The author’s son thinks that it’s possible for other living being to exist and live on other planets, but the author had this theory as just a theory until the moment when scientist found a lot of planets that can potentially have live life on them. After that, he starts to share his memories about what people thought about life outside of Earth back in the 70’s. He shares this idea that to find a planet we have to look at stars. He talks about two methods of how we can find a planet looking at a star. Planets have their gravitational pull and when they are moving around a star we can see them

Extraterrestrial life has been a big topic for Americans since day one. According to author Lee Speigel there is an estimation of 48 percent of Americans throughout the nation that believe in life on other planets while only 35 percent reject the idea. Life on other planets exists. According to the article “Aliens among Us” by Paul, David extraterrestrial evidence has already been discovered such as different types of bacteria and even water. The article “Aliens among Us” is a credible source because it has many explanations and possibilities on how life on other planets can easily be real. Extraterrestrial life can be many things such as plants or living bacteria. Astronomers have proven that there is water in other planets such as Mars. Water contains different types of bacteria and cells, water in other planets can be one of our best piece of evidence that we can prove that there is life on other planets. There has been UFO’s crashes that have been recorded such as in Roswell, New Mexico 1947 but the government took all the evidence and it’s probably in Area 51. Although there is no hard evidence that proves aliens are real, NASA has announced that they will be able to find living creatures by the year 2025.

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

Among the billions of stars in each galaxy, many have planets that revolve around them. At least a few are bound to be of the right size and have the correct spatial orientation with respect to their star to allow life to grow. We believe this because life exists on the Earth. Astronomers have concluded that there must be hundreds of billions of other stars with conditions approximating those of the sun. Therefore there could be a million earth like planets with advanced civilizations in the Milky Way galaxy alone (Stilley). It is very probable that there is intelligent life elsewhere in the universe.

The topic of finding life on another planet, or seeing if we are the only ones in our Universe has been a mystery to us since the beginning of time. One of the closest findings NASA has found to this topic was exoplanets. Exoplanet is defined as a planet that orbits a star outside the solar system. NASA’s Kepler Space Telescope is the main telescope used to search for exoplanets that have similar features to Earth, and habitability on these exoplanets. NASA has found over 2,000 exoplanets so far, and out of those, there are only about eight exoplanets that seem to have a possibility on being a habitable exoplanets. Among these eight, Kepler 62f seems to be the most plausible.

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

Where ever extra-terrestrial beings are located in space they can enhance our understanding of the universe. This is because we are the newcomers in the universe and extra-terrestrial beings can potentially be around since the time our universe was created,which was 14 billion years ago (Bennett,1 ).

correct, then the gas may be a sign that planets are being born there. The gas

The universe is too massive to describe in words, and is always expanding, mars could have once held life, and NASA has already discovered other habitable planets. There is no reason to scoff at the notion of alien life, the facts are too numerous, but we always need more. More discoveries and theories to keep the dream alive, that's why people should be more invested in space exploration, problems we have on this planet could have solutions on others. The universe could hold answers to questions we haven't asked, and to those queries we have, it's just a matter of whether or not we’re ready for

For many centuries astronomers have asked themselves a simple three worded question “Are we alone?” This simple question has become a controversy all around the globe. Why? Because we want to be able to communicate with other life forms (aliens). However, in order for us to find life in another planet we first have to find planets that have the possibility to support life, nevertheless that question wasn’t answerable until 2009. In 2009 NASA launched a telescope that was going to search for planets. This telescope was known as the Kepler Space Telescope who’s job was to detect earth like planets orbiting a star.

Aliens are one of the most controversial topics of science out there and many people don’t know what or who to believe. Speculation over this topic has led to conspiracy theories, pop culture references like TV shows and movies, and famous debates over there truthfulness of alien existence. But there are more hard facts and evidence to help support peoples claims like thousands of daily UFO sightings, to ancient art and relics depicting alien beings and their spacecrafts, and to government officials providing proof to show that extraterrestrials have visited our planet.

Through studying Uranus, scientist have discovered that Uranus has a thick layer of gases that surround the planet, they have also found that there are

The first exoplanet found, Peg 51 b, challenged the then present theory of giant planet formation. Models of giant planet formation stated that Jupiter-like planets form at distances of 4-5 AU, AU being the distance from