Dark matter and dark energy are mysterious components that make up a significant part of the universe, although they cannot be directly observed.
Dark Matter: This is an invisible and hypothetical form of matter that does not emit, absorb, or reflect light. It doesn't interact with electromagnetic forces, making it challenging to detect directly . However, its presence is inferred from its gravitational effects on visible matter, such as galaxies and galaxy clusters.
Dark Energy: Dark energy is the mysterious force that is causing the accelerated expansion of the universe. Unlike gravity, which tends to pull things together, dark energy seems to act as a repulsive force, pushing galaxies apart. The nature of dark energy is not well understood, and it remains one of the biggest mysteries in modern cosmology.