What Exactly Is Dark Matter and Dark Energy?
Dark matter and dark energy are mysterious substances that scientists believe exist based on their observations of the universe. Despite their names, dark matter and dark energy are not actually "dark" in the traditional sense of the word. Instead, they are called "dark" because they do not interact with light in the same way that ordinary matter does, making them difficult to detect.
Dark matter is a type of matter that is thought to make up about 85% of the total mass of the universe. It does not interact with light or other forms of electromagnetic radiation, which makes it invisible to telescopes and other instruments that are used to study the universe. However, scientists believe that dark matter must exist because of the way that galaxies and other large structures in the universe behave.
Dark energy is a type of energy that is thought to make up about 70% of the total energy of the universe. It is believed to be the driving force behind the expansion of the universe, which is accelerating at an increasing rate. Like dark matter, dark energy does not interact with light or other forms of electromagnetic radiation, making it difficult to detect.
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Cosmology
Galaxies
Astronomy
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WIMPs (Weakly Interacting Massive Particles)
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Field energy
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