Dark Matter - Original Draft

1421 Words6 Pages
Dark Matter – First Draft In the scientific community, many ask what forces drive the shaping of galaxies and the universe. This question is difficult to answer because physicists realized there was missing mass when they were looking at galaxies in the universe. Galaxies simply could not exist without accounting for additional mass. However, scientist Fritz Zwicky theorized a solution for this problem in the 1930’s (Basak). He used the abstract idea that this missing mass could be accounted for with undetectable dark matter. Unfortunately, scientists still are not sure what exactly these dark matter particle are, but they confirm they must exist. Without dark matter the universe would not have formed into the shape it is in currently.…show more content…
Luminous matter is matter that humans can easily observe through sight, touch, smell, sound, and taste. The rest of the universe is made of two other substances: dark matter and dark energy. Scientists theorize the rest of the universe is made up of 71.4% dark energy and 24% dark matter (Basak 2). Dark energy is mostly responsible for the movement of galaxies relative to each other, and dark matter is responsible for the shape and formation of galaxies after the big bang. Therefore, focusing just on dark matter helps scientists understand why galaxies are shaped the way they are in the universe. It is important to understand the two candidate particles scientists are investigating as dark matter. The first contender that could be dark matter is a neutralino. A neutralino is a weakly interacting massive particle that has a mass of about one-thousand hydrogen atoms (Zioutas 1485). Although this particle is relatively bigger than a hydrogen atom, a particle scientists can easily observe, neutralinos are extremely hard to detect because they don’t emit an electromagnetic spectrum. In simpler terms, neutralino’s are very difficult to detect because they are weakly interacting particles that don’t produce any color or radiation. Although, neutralinos have not yet been observed directly scientists are formulating ways to observe the particle. The first way scientists are
Open Document