My EPQ title on DARK MATTER! - The Student Room.
Even though dark matter and dark energy presently can not be detected by sight, touch, or sound, many astronomers declare that they exist because of the evidence from the gravitational force dark matter exerts upon the galaxies in our universe, the fact that the universe is expanding at a rapid rate, and how dark matter and dark energy confirm the properties of space.
As Dark Matter does not interact with electromagnetic forces, the detectors may not be able to detect dark matter in a collision of two or more particles in an experiment. However if the energy of the particles before the collision is not equal the energy of the products after the collision the energy could be lost to Dark matter that we cannot detect.
This essay has been submitted by a student. This is not an example of the work written by professional essay writers. Possible Link Between Primordial Black Holes and Dark Matter.
Dark matter is a hypothetical invisible mass thought to be responsible for adding gravity to galaxies and other bodies. Since the amount of visible material in galaxies can't account for their shapes, distributions, and movements, astrophysicists argue there must be a form of mass yet to be discovered.
Researching Concepts of Dark and Celestial Matter. The study of the celestial world predates written history. The first civilizations created complex myths about to explain the existence of such celestial matter as the sun, moon and stars. Greek and Roman scholars debated about the cosmos and its relationship to the earth.
Dark matter is the term astronomers use to describe material in the universe that does not emit or reflect light and is, therefore, invisible. Stars, nebulae, and galaxies are examples of luminous objects in the sky. However, luminous matter appears to make up only a small fraction of all the matter in the universe, perhaps only up to 10.
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.