Informative Speech On Dark Matter

Dark matter and dark energy are two entities that have very little known about them, except that they make up about 95 percent of the universe. Even though this is a large part of the universe, it wasn’t even thought about until the 1960’s or the 1970’s. This is because of the fact that it is very hard to detect and almost impossible to see. Although it is impossible to see, we can see the effects of them both in our galaxy.

The visible universe- including Earth, the sun, other stars, and galaxies is made of protons, neutrons, and electrons bundled together into atoms (National Geographic, 2012). Astronomers use the term ‘baryonic’ to refer to all objects made of normal atomic matter, essentially ignoring the presence of electrons (Swinburne University, 2015). Baryons interact with each other through gravity, nuclear forces and the electrostatic force. These interactions are what allow baryonic matter (such as stars) to emit light (Grocutt, 2012). One of the most surprising discoveries of the 20th century was this ordinary, or baryonic, matter makes up less than 5 percent of mass of the universe. The rest of the universe appears to be made of a mysterious, invisible substance called dark matter (25 percent) and a force that repels gravity known as dark energy (70 percent) (National Geographic, 2012).

There is perhaps no current problem of greater importance to astrophysics and cosmology than that of "dark matter". The controversy, as the name implies, is centered on the notion that there may exist an enormous amount of matter in the Universe that cannot be detected from the light that it emits. The evidence of dark matter is from the motions of astronomical objects, specifically stellar, galactic, and galaxy cluster/supercluster observations.

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

Astronomers believe there is enough dark matter in the universe to slow its expansion gradually toward a stop.

The properties of regular matter include a composition of neutrons, protons, and electrons; it can be seen and touched. The properties of dark matter are unknown; dark matter cannot be seen, touched, interact with light, or produces radiation. Dark energy is also an unknown entity, but it is considered a form of energy. Dark energy is also known as the energy of nothing or the energy of empty space. Even so the big bang theory is still widely accepted among people as the start of the universe

The universe of the past was understood to be a simple one-galaxy model that was both unchanging and immeasurable. Theories have constantly changed and been reconstructed to better portray the progression of human understanding over time. “The cosmos began

The trace of energy was coming from the planet Earth. Orion flew to Earth to find the dark energy.

I have learned many new things from the reading of Bad Science. I have a few of them that I will discuss because they caught my interest.

Once, when I was eight years old, I was wandering through my elementary school's library just to see what might grasp my curious approach. As I walked down the non-fiction isle, I spotted a book-the title I cannot recall-which had a picture of a flaming sphere on its front cover. I was immediately intrigued. I knew what it was the second that my eyes caught sight of it. What fascinated me about the cover was not that the image was an image of the sun, but the fact that there was an enormous ball of hot gas just floating in space. I read the whole thing from front to cover. I wanted to know how long it had existed, how it was formed, how it doesn't burn us all alive if the Earth is so close to it, and what would happen if it died? This book ignited a spark in me which would eventually allow my cosmological curiosity to grow.

With Roger Penrose he demonstrated that Einstein's general hypothesis of relativity suggested space and time would have a start in the Huge explosion and an end in dark gaps (1970). These outcomes showed that it was important to bring together broad relativity with quantum hypothesis, the other extraordinary logical advancement of the primary portion of the twentieth century. One outcome of such a unification, to the point that he found was that dark gaps ought not be totally dark, but instead ought to emanate 'Selling' radiation and in the long run vanish and vanish (1974). Another guess is that the universe has no edge or limit in nonexistent time. This would infer that the way the universe started was totally controlled by the laws of science. Towards the finish of his life, Stephen was working with associates on a conceivable determination to the dark opening data Catch 22, where wrangle about bases on the preservation of

I love it how, with Physics, the most complex phenomena of the universe can be explained by fitting ideas and discoveries together into a theory.

Dark Matter and Dark Energy are important. They can help us know how the universe began. These two are the mysteries of the universe; they compose about 90% of the universe. They are mysteries because we believe that they exist but we can’t see them or detect them. People question whether they manifest to be the same thing. Astronomers know very little about their constitution so they cannot assume they are related.

Definition of matter was a big controversy in science. Approximately two and third millennium ago, the Greek philosopher Aristotle (384 BC -322 BC) wrote that matter consist of fire, wind, earth and water and that different compounds are obtained by different combinations of these elements (Laycock, 1979). Around 2000 years after that and through many contributions from many scientists, William Odin categorised the elements based on their atomic number and stated that these elements combine with one another to create different compounds (Scerri, 2007). At present, around 100 elements react with one another to form thousands of known and unknown compounds. However in the last century, it was found that these elements and compounds only represent 4.9% of the universe. The other 95% is dark matter (26.8%) and dark energy (68.3%) (Francis, 2013). This means that scientists spent more than two millennia trying to understand the smallest portion of the universe. Hence, scientists are new to the concept of dark matter and dark energy. So what is dark matter and dark energy that represent the majority of the universe and what are the theories that illustrates their behaviour in the universe, causing dark matter and dark energy be accepted hypothesis to explain the different observation?

After that theory scientists started Wondering about this theory and a lot of Scientists made up Models and conducted Experiments to Explain this Theory. In this report we will put our self’s inside Each scientist’s Shoe and see What has he discovered.