This could be the first confirmed evidence for a fifth force on nature.

According to current understanding, there are four fundamental forces in nature, three of which – the electromagnetic force and the strong and weak nuclear forces – are explained by the standard model of particle physics. However, the model does not explain the other known fundamental force, gravity, or dark matter – a strange and mysterious substance thought to make up about 27% of the universe.

 Now researchers have said there could be another, fifth, fundamental force of nature. 

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