Dark Matter and Dark Energy Essay

Dark Matter and Dark Energy Essay

Length: 1719 words (4.9 double-spaced pages)

Rating: Powerful Essays

Open Document

Essay Preview

Dark Matter and Dark Energy

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.
Dark Energy is a mysterious force that drives the expansion of the universe. Astronomers states that the universe is expanding and the expansion is accelerating, so the unknown anti-gravity force at work is termed dark energy. Dark energy has important consequences for the evolution of the Universe and the structure within it. The astronomer is in a hunt for dark energy but how can we hunt something we don’t know. Astronomers label it dark energy because it's believed to be the force which cause the universe to expand but what is what the cause of the expression is is not energy. I am pointing this out because some theories misled astronomers.
Astronomers are able to specify how much the universe is expanding by measuring this redshift from the spectrum of the supernova. By studying many supernova at different distances, astronomers can piece together a history of the expansion of the Universe. This expansion gave the astronomers the evidence that there is dark energy out there that cause the universe to expand.
Dark Matter is next largest ingredient, which only interacts with the rest of the universe through its gravity. Astronomers believe that the Universe is critically balanced between being open and closed. They derive this fact from the observatio...

... middle of paper ...

...concept which was used by astronomers and other scientists to comprehend the heavens. Considering the Earth as the core of the world, the celestial sphere is composed of the objects detectible from Earth. When using an Armillary sphere, people can estimate the position of something in the sky’s relation to a viewer on Earth. This model can also be used to show people how the celestial sphere function.
The Armillary sphere is observed as a scientific interest today. These machines can be utilize for some plain astronomical calculations. Many examples can be seen on display in scientific museums which gather old instruments. Some people gather vintage spheres because they see them visually exciting. Armillary spheres are usually works of art in addition to working example; they can differ broadly in size from desktop versions for devices which fill large rooms

Need Writing Help?

Get feedback on grammar, clarity, concision and logic instantly.

Check your paper »

Dark Matter and Dark Energy Essay

- 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. One way that we can “see” the dark matter is the movement of the Milky Way Galaxy....   [tags: theories, universe, gravity, supernovae]

Powerful Essays
779 words (2.2 pages)

Dark Matter and Dark Energy Essay

- ... The galaxies we observe today would fly apart because they wouldn't have enough matter to create a strong enough gravity to hold themselves together. Dark matter is also responsible for amplifying small fluctuations in the Cosmic Microwave Background back in the early universe to create the large scale structure we observe in the universe today. Astronomers are still in the hunt of the Dark energy and dark matter but they haven’t found none. They are undetectable which makes it very hard for them to see or convince others to believe in their existence....   [tags: armillary, mysteries, exist, universe, force]

Powerful Essays
1719 words (4.9 pages)

The Nuclear Process Of Fusion Essays

- As scientific research has demonstrated for the past 100 years, everything in existence spontaneously came to be from a incredibly hot, dense ball of matter known as a singularity (Veneziano, 2014). In an infinitesimal fraction of a second, the universe grew from less than the size of a marble to more than 100-thousand miles in diameter, expanding faster than the speed of light. (Veneziano, 2014). In the millions of years that followed, various gases and matter cooled from millions of degrees in temperature, to more manageable thousands of degrees, allowing matter to collect and the universe to take shape (Untitle, 2014)....   [tags: Universe, Big Bang, Dark matter, Dark energy]

Powerful Essays
1203 words (3.4 pages)

What´s Dark Matter? Essay

- ... (Dark Energy, Dark Matter - NASA Science) The way we know that dark matter exists is because there is more gravity than visible matter. If the level of matter and gravity did not match up the universe would have been ripped apart. This is yet another reason that we know dark matter is at work. If the universe has not been ripped apart there must be some type of force that we cannot see that is holding it all together. The discovery of dark matter was very puzzling at first. Astronomers expected stars at the center of the galaxy to have a higher rotational velocity then stars at the edge of the galaxy....   [tags: particles, high energy]

Free Essays
666 words (1.9 pages)

Essay on Dark Matter in the Galaxy

- The world we see and are familiar with consists of Normal Matter. Everything made out of atoms is considered Normal Matter. Normal Matter makes up of five percent of all matter. So what makes up the rest of the ninety-five percent. Dark Energy makes up roughly seventy percent of our universe while Dark Matter makes up the last twenty-five percent. What is Dark Matter. Dark Matter is the only explanation we have for why our universe expands in the way it does, but we have no idea what makes it up....   [tags: Matter, Atoms, Galaxy]

Powerful Essays
1814 words (5.2 pages)

Baryonic Matter and Antimatter Essay

- In the universe there are to three types of matter, two identified and one hypothetical. The known matter is called Baryonic matter and antimatter, the third is called dark matter. Baryonic matter is the matter that makes life possible, and is the matter living things frequently interact with on planet earth. Antimatter is precisely that, anti-matter, and is generally referred to as mirror matter. The two types of matter that will be discussed are anti matter and dark matter. Antimatter was initially proposed by British Physicist, Paul Dirac....   [tags: different types of matter, identified]

Powerful Essays
1379 words (3.9 pages)

Essay about Notes On Energy And Energy

- What Is Energy. During a storm lightning flashes in the sky and a thunderclap shakes your house with a deafening boom (Figure 1). Strong, howling winds blow tree branches widely back and forth and a few trees blow over knocking down power lines in your neighborhood. You fumble around in the dark looking for matches and candles. When you strike a match and light a candle, the flickering rays of light give you a little comfort during the scary storm. All of the changes that occurred during the storm had one thing in common--energy....   [tags: Energy, Potential energy, Force, Kinetic energy]

Powerful Essays
1015 words (2.9 pages)

Examining the Existence of Dark Matter in the Universe Essay

- “Why is the night sky dark?” For thousands of years this question has been asked. Astronomers are continually growing closer to the answer but still no one has yet found an answer that is efficient enough. While scientists steadily collect data, they are hoping to find some clue as to realize that the answer may be because of something that is too mind blowing for us to comprehend. There is perhaps no current problem of greater importance to astrophysics and cosmology than that of "dark matter"....   [tags: Astronomy, Science, informative]

Powerful Essays
883 words (2.5 pages)

Essay on Solar Energy

- Have you ever glanced up at the sun and wondered what it is capable of doing. The sun is a very powerful resource, and is capable of doing a variety of things. One of the sun’s many capabilities is producing energy. This energy is called solar energy, which is the energy I have chosen to research. As you will read later on, solar energy can be very useful. Some of the first people to discover solar energy were the Greek and Romans. They built houses in a way that made use of the sun’s ability to light and heat spaces....   [tags: Energy]

Powerful Essays
698 words (2 pages)

Dark Energy Essay

- Dark energy what is it. Dark energy is a unknown energy said to take up 70 percent of the universe. The energy is a repulsive gravitational effect that is causing the universe to accelerate out-ward. No one knows exactly what dark energy is or where it comes from. Dark Energy is a new idea. Little is known about dark energy, yet it takes up a huge amount if the universe. Scientist were able to show the universe was expanding at an accelerated rate by measuring the red-shift of an object by comparing the spectral lines of the elements and the spectral lines of the same elements measured in a lab....   [tags: essays research papers]

Powerful Essays
699 words (2 pages)