Essay on What´s 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.

This shows why dark matter is so mysterious, but yet still fascinating, because scientists don’t even have that much information on it, but they know it’s out there. They can tell it’s out there, because it’s affects on it’s surroundings like stars and galaxies. When dark matter is near the light from stars or galaxies, it will begin to bend. This how scientists found out about dark matter, because the light is interacting with the gravitational pull created by dark matter. To gain a better understanding of what dark matter is and how it's different from other types of matter, you have to look at matter that we already know about. So called “normal” matter is matter that we can see like stars, planets, and galaxies. This matter has particles consisting of baryon particles, which is a nucleon that has a weight of the same or increased weight of a proton. Dark matter is none of those things, because when a normal baryonic cloud is exposed to radiation going into the cloud, it absorbs the radiation unlike dark matter clouds. The next matter that we know about is called antimatter, which is when molecules group together in the form of an atom and have positrons, anti-neutrons, and anti-protons particles in it. This forms an extremely unstable matter, which is unlike dark matter that is stable. When you take in account the other types of matter and compare it to dark matter, it shows that dark

The basic argument is that if we measure velocities in some region, then there has to be enough mass there for gravity to stop all the objects from flying apart. When such velocity measurements are done on large scales, it turns out that the amount of inferred mass is much more than

Have you ever wondered about other universes? Lots of people have and this is known as the multiverse theory. This paper is about that exact topic. Lots of religions believe and even teach about the multiverse like Buddhism and Islam. There is scientific evidence of the multiverse. There is an infinite number of things that could be in other universes. The multiverse theory is completely plausible and it is most likely real.

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

The evidence for this was the Cosmic Background Radiation and because of this, they noticed the temperature from it and believed

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

In 1920, two astronomers named Harlow Shapley and Heber Curtis had a big public debate. They argued about a lot of things, but the main thing they were arguing about was the size of the Milky Way and whether or not there were other galaxies like ours in the universe. Shapley had figured out that the Milky Way was a lot bigger than people thought before, and he was right, but because of that he also believed that there couldn't be other galaxies like ours out there. Curtis, on the other hand, thought the Milky Way was smaller than it actually is, but argued that there might be other galaxies like ours out there.

Basak, Tanushree, and Tanmoy Mondal. "Constraining Minimal U(1) B − L Model from Dark Matter Observations." (2013): n. pag. Cornell University Library. Web. 10 Nov. 2015.

She is most notable for providing a great deal of compelling evidence, alongside Dr. Kent Ford, that proved Fritz Zwicky’s Theory of the existence of Dark Matter.2 Zwicky stated that individual galaxies within the Coma Cluster were moving so fast that if they were only held by the gravity of its visible mass that it would escape. Since he found no evidence of the cluster falling apart he concluded that there must be something else holding it together that was nearly 10 times that of visible matter, he called this Dark matter.2 While working with Dr. Ford, they began analyzing the light coming from stars in spiral galaxies. They used what is called the “Doppler effect” which states the wavelength shift is proportional to the speed of the light source relative to the observer. This uses the wavelength of light in how it is approaching or moving away from the observer. When a light source moves away from you it presents a red color and when it comes toward you it presents a blue light. After measuring several stars in different parts

Initially anticipated by Albert Einstein with his theory of relativity in 1916 to the year 1980, when Alan Guth developed the concept of cosmic inflation, a telescope was thought to have detected primordial gravitational waves after being examined for three years. Led by John Kovac, a group of Harvard astrophysicists retrieved the data from the Background Imaging of Cosmic Extragalactic Polarization 2, a telescope located at the South Pole, where the telescope was used to measure the cosmic microwave background. For three years, the team had been examining the signal to determine if the gravitational waves created were occurring at the same place a trillion times by observing part of the sky from the south pole.

Did you know that we have a Dark Matter in the Galaxy? The world we see and are familiar with comprises of Ordinary Matter. Everything made out of particles is viewed as Ordinary Matter. Typical Matter makes up of five percent of all matter. So what makes up whatever is left of the ninety-five percent? Dark energy makes up approximately seventy percent of our universe while Dark Matter makes up the last a quarter century. What is Dark Matter? Dark Matter is the main clarification we have for why our universe grows in the way it does; however, we have no clue what makes it up. Dark Matter does not cluster up like Ordinary Matter, so it doesn't make up anything that we discover imperative; for example, planets and life shapes. Rather Dark Matter is spread out over our world or in another

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

Robert Wilson in 1964 they discovered a microwave signal buried I their data. They attempted to filter out the signal, assuming that it was merely unwanted noise, however, they had inadvertently discovered the Cosmic Microwave Background. The CBM had been predicted by a theory that a few believed at the time call the Big Bang. This discovery was first evidence that the Universe beginning.

The theory was first introduced by Soviet Aleksandr Friedmann and Georges LeMaitre in 1927, however there was no evidence to back up the theory at this time so most scientists just ignored this very new theory, that abolished all ideas that most scientists had at this time, i.e. the theory of ‘steady state’. 2 years later, in 1929, at Mt Wilson Observatory, Edwin Hubble found the first ever evidence to back up the