physics

What is Dark Matter and Dark Energy?

Dark matter and dark energy are two of the most profound mysteries in astrophysics. Dark matter is an unseen form of matter that does not emit, absorb, or reflect light, but its presence is inferred from its gravitational effects on visible matter. Dark energy is an unknown form of energy that is driving the accelerated expansion of the universe. Together, they make up about 95% of the total mass-energy content of the universe.

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