One way that we can “see” the dark matter is the movement of the Milky Way Galaxy. While studying the Milky Way, scientists noticed that the outer rings of the galaxy were moving at the same speed as the inner rings (“Dark Energy, Dark Matter”, n.d.) . This may seem normal, but, due to the law of gravity, the outer rings should be moving slower because of their distance from other stars and planets, and because of their distance from the center of the universe. This means that there has to be an outside force that is pulling on the outer ring. Scientists theorize that this is dark matter. Scientists think that there is a ring around the Milky Way that may be as much as ten times as big as the outer ring of the galaxy itself. This effect is also seen in different galaxies. Also, in clusters of galaxies, the power of gravity is a lot stronger than it’s mass should suggest. The effects of dark energy were first seen in the 1990’s when scientists were watching IA supernovae. Scientists had already figured out how to calculate the distance of Ia supernovae, and they thought they knew the distance of the supernovae, but they were off by a lot, which means that there is an energy source that is pushing the universe apart.
The Theories of Dark Matter and Dark Energy
What are there two phenomena though? There is v...
... middle of paper ...
...t approximately five billion years ago, dark energy took over. This means that the universe is separating more rapidly than it used to. From this face, there are two theories of the universe’s end; the big chill and the big rip. The Big Chill is a theory that states that the universe will slowly drift apart until all of the stars die out and the planets all freeze and heat disappears. The Big Rip is an even more bleak theory. It states that the universe will expand faster and faster, due to dark energy, until galaxies rip themselves apart. Also, this quick expansion will lead to everything from galaxies to molecules violently ripping itself apart. Out of these two theories, the Big Chill is the one that is less likely to happen. this said, weather or not the Big Rip happens or not is all based on if dark energy stays or if it disappears as quickly as it appeared.
Need Writing Help?
Get feedback on grammar, clarity, concision and logic instantly.Check your paper »
- 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]
779 words (2.2 pages)
- ... 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]
1719 words (4.9 pages)
- 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]
1203 words (3.4 pages)
- ... (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]
666 words (1.9 pages)
- 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]
1814 words (5.2 pages)
- 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]
1379 words (3.9 pages)
- 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]
1015 words (2.9 pages)
- “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]
883 words (2.5 pages)
- 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]
698 words (2 pages)
- 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]
699 words (2 pages)