Persuasive Speech

Last time what I did

Informative Speech Outline

Introduction

If the aliens really exist how will they look like? Will they look like those creatures in the movies or just like you and me?

Three reliable sources are used to establish the credibility. Such as CNN News, NASA, and an expert in physics.

Since the human starting to explore the universe, we are curious about whether the Earth is the only planet that have lives on.

Today I will use different ways to show you that the aliens may really exist in the universe and we are not alone.

[The first way I am going to introduce is the possibility, which is known as the Fermi paradox.]

Body

There are countless stars in the universe and Earth is the just one of the stars.

About a hundred billion stars in the Milky Way, which include Solar system, and more than two trillion galaxies in the universe.

According to “Does alien life exist?” by Don Lincoln, there is an interesting viewpoint called Fermi paradox. Among all the stars in the universe, Earth is not as special as we think which is the only planet has living creatures on it.

[There are also some people who claimed they witnessed UFOs on Earth]

Five percent of the encounters of the UFO (Unidentified flying object) were reliable yet inexplicable which means unable to explained or understood by human.

According to “Why we should take UFO sightings seriously” by Kevin Knuth, Associate Professor of Physics, State University of New York. The UFO sightings flight capabilities are beyond any known human technology.

Governments, scientists and media declared the UFO sightings are caused by the weather or human actions. There are still some phenomena that we cannot explain.

[What about the life outside of the Earth?]

Scientists keep searching for life in the universe. However, alien may not be a real creature but in the form of cells.

According to “The Search for Life in the Universe” by Neil deGrasse Tyson. There are compelling arguments to suggest there is form of life in the universe.

Discovery of water vapor on the planet outside of the solar system is a significant progress for the scientists. As we know that three basic elements to form the life is water, sun and air. Even we do not have strong evidence that there is life on that planet, we still can hold positive attitude that there is life somewhere in the universe.

Conclusion

In conclusion, we are probably not alone. Which means alien may exist.

With the view of possibility, the sightings of the UFO and the discovery of the water vapor. These signs show us alien might be somewhere in the universe.

With the progress of science and technology, I believe the discovery of alien may be possible in the future and we will not be alone anymore.