Extra Credit Report (4)

Dark Matter: Material Answers

• Dark matter is a theory composed of particles that cannot interact with the electromagnetic force. 
• Unable to interact with light, but do interact gravitationally. 
• The gravitational pull of dark matter stops galaxies from flying apart as they rotate. 
• It is said that there is 5x as much dark matter than regular matter. 
• Both of these types of matter tend to cluster together, because they are both highly affected by gravity. 
• It is said that the universe was originally filled with threads of dark matter, and regular matter formed around them. 
• This created galaxies.
• Dr. Dietrich and his colleagues detected the part of a thread that runs between two groups of galaxies; the light and dark matter. 
• they did so by looking through the distorted effect of the thread's gravity. 
• They concluded the threads shape and its mass, which is about 60 trillion times the mass of the sun. 
• This article is important to me because it is very interesting to know that there is enough dark matter 60 trillion times larger than the mass of the sun.