Our universe is made up of billions of galaxies, each containing billions of stars, many planets, suns, moons, and other cosmic material. These stars produce so much energy that it travels through the universe at the speed of light. However, any matter that we know of in the universe is only four percent of the total mass and energy of the universe. Of the rest about twenty-one percent is dark or invisible matter that does not itself release energy, but exerts a gravitational pull on all normal matter or visible matter in the universe. Whereas dark energy is seventy-four percent of the total mass of the universe and dark energy pushes or repels all visible matter in the universe. Both are mysterious forces that scientists cannot find or investigate. When scientists were studying about cosmic space, they saw that the universe is expanding and after further investigation, they discovered that certain energy is stopping it from expanding, which they called Dark Matter that was causing a gravitational pull on visible matter. This made scientists think that it would eventually stop the but when they calculated expanded that even the pull was expanding at a higher rate and they found that a certain type of energy, which they called dark energy, pushes against gravity and that they found that energy was the highest. The particles that make up dark matter and dark energy are still uncertain. They seem to be the competing forces in the universe and both were forged into the Big Bang theory. The evidence that dark matter is there because, according to calculations, visible matter does not possess as much gravitational pull to hold all the galaxies together. , so if dark matter didn’t exist, galaxies would have crashed into each other and been flying around. instead of staying in the same place. On the other hand, the expansion of the universe is caused by dark energy because after the Big Bang the universe started expanding at a faster rate than before. the galaxies would have collided with each other and been flying around. instead of staying in the same place. On the other hand, the expansion of the universe is caused by dark energy because after the Big Bang the universe started expanding at a faster rate than before. the galaxies would have collided with each other and been flying around. instead of staying in the same place. On the other hand, the expansion of the universe is caused by dark energy because after the Big Bang the universe started expanding at a faster rate than before.Comparison chart
|Dark matter||Dark energy|
|Definition||a hypothetical form of matter thought to make up 90 percent of the universe||the unknown energy thought to make up about 70 percent of the total observed in the universe|
|Example||It is not visible to the human eye in most cases.||the simplest form of dark energy is a cosmological constant|
|Concept||Dark matter attracts gravitational force.||Dark energy repels the gravitational force.|
|Working||Dark matter holds all galaxies together||Dark energy makes the universe expand faster|
Definition of dark matter
Dark matter is an invisible force consisting of a subatomic particle that cannot be seen or detected, but exerts a gravitational pull on all visible matter in the universe. Dark matter is made up of about twenty-one percent of the universe. Scientists have studied that dark matter exists due to the fact that the visible matter in our universe does not possess enough gravitational force to hold or align all the galaxies together. Dark matter is necessary for the proper maintenance and rotation of galaxies in place or else the galaxies would fall apart or collide and form clusters. Dark matter is also responsible for creating small fluctuations in cosmic space in the early stages of our universe to create a large-scale universe like the one we see today. Dark matter is completely invisible to light and other electromagnetic radiation, making it impossible to detect and investigate with the latest devices. Dark matter could also be responsible for the optical illusions astronomers have observed.
Dark energy definition
Dark energy is a completely mysterious phenomenon, but scientists know it’s there because it causes the universe to expand. As investigated by Albert Einstein, dark energy is not empty space, but space that has its own energy. As this energy is a property of space itself it does not shrink when it causes the universe to expand, in fact as the universe expands it creates more energy or dark energy in space which as a result will cause the universe expands. faster and faster. Dark matter pushes the gravitational force outward and shows up in the universe as a whole. The particles that make up dark energy have not yet been investigated by scientists. Dark matter is made up of seventy-four percent of the mass of the universe.
Differences in a nutshell
- Dark matter is twenty-one percent of the mass and dark energy is seventy-four percent of the mass of the universe.
- Dark matter attracts the gravitational force while dark energy repels the gravitational force.
- Dark matter holds all galaxies together by gravity, while dark energy makes the universe expand faster.
Galaxy is a vast space where many are unknown to human beings. There are many terms related to astrology that confuse people who want to understand it more. Some of these are so similar that you end up thinking they mean the same thing. All in all, this article helps make sure that people can understand the differences between the two similar terms.