"If true, it's revolutionary." Our current understanding of the Universe states that it's governed by four fundamental forces: gravity, electromagnetic, and the strong and weak nuclear forces. But there are hints of a fifth force of nature , and if it exists, we'd not only be able to fill the remaining holes in Einstein's general relativity - we'd have to rethink our understanding of how the Universe actually works. And now physicists have figured out how to put this mysterious force to the ultimate test. The four forces of nature are what holds the standard model of physics together, which is what we use to explain and predict the behaviour of particles and matter in our Universe. At the smallest end of the scale are the two nuclear forces - the strong nuclear force is what holds atomic nuclei in place, and the weak nuclear force enables certain atoms to undergo radioactive decay. Gravity and the electromagnetic force are on the larger end o
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