Dark was inferred by Fritz Zwicky in 1933 but he did have enough evidence to prove its existence so it was known as the invisible matter. In the 1970s Vera Rubin proved Dark Matter when she studied galactic rotation problem which proved dark matters existense. As Dark Matter is a non-baryonic type of matter, which means matter that is not normal, it is very had to study.

Components of the Universe

Components of Dark Matter

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