Scientists have set about discovering if dark matter behaves like ordinary matter in the cosmos, with the answer revealing more about this mysterious "stuff" and casting doubt on the existence of a fifth fundamental force of nature.

Dark matter obeys gravity after all — could that rule out a 5th fundamental force in the universe?

Source: space
Source Link: https://www.space.com/astronomy/dark-universe/dark-matter-obeys-gravity-after-all-could-that-rule-out-a-5th-fundamental-force-in-the-universe