Dark Universe

It doesn’t matter how beautiful your theory is, it doesn’t matter how smart you are. If it doesn’t agree with the experiment, it’s wrong. – Richard P. Feynman

Dark matter is a hypothetical form of matter that accounts for approximately 85% of the matter in the universe and about 27% of its total mass-energy density[1] or about 2.241×10−27 kg/m3. Its presence is implied in various astrophysical observations, including gravitational effects that cannot be explained by accepted theories of gravity unless more matter is present than can be seen. For this reason, most experts think that dark matter is abundant in the universe and has had a strong influence on its structure and evolution. Dark matter is called dark because it does not appear to interact with the electromagnetic field, which means it does not absorb, reflect or emit electromagnetic radiation and is, therefore, difficult to detect. – Wikipedia