Question

What is dark matter ​

Answer 1

$\sf\blue\bigstar$Dark matter can refer to any substance which interacts predominantly via gravity with visible matter (e.g., stars and planets).

$\sf\blue\bigstar$Hence in principle it need not be composed of a new type of fundamental particle but could, at least in part, be made up of standard baryonic matter, such as protons or neutrons.

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Answer 2

Answer:

dark !after is a form of matter which is in account approximately 85%of the matter in universe