Negative Matter

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Negative Matter

 Marina W
1/10/19
Blog


Recently, scientists at the University of Oxford have come up with a surprising discovery-a fluid that is capable of possessing negative mass. This fluid is made up of dark matter and dark energy which makes up 95 percent of the universe. This fluid repels all nearby substances, so for example, if you were to push the negative mass, it would accelerate towards you instead. This discovery also aligns with a prediction that Einstein made 100 years ago.

Our current model of the universe, called LambdaCDM, is complex yet does not show any physical attributes of dark energy and dark matter. The only reason people known about them is because of the gravitational effects they have on matter that we can see. Scientists used to think negative matter was not capable of existing because in theory, negative matter would become less dense as the universe continues to expand. But the observations shown by the students have contradicted this previous thought. The research applies a “creation tensor”, which allows negative masses to be continuously created.

This demonstrates that when more negative masses are created, the fluid does not dilute and thin as the universe spreads out. In fact, dark energy holds many similarities and is even identical with negative mass. This new theory also provides new, accurate predictions about the behavior of dark matter halos. Many galaxies in the universe are rotating so quickly that in theory they should be ripping themselves apart, so this then suggests that a “halo” of dark matter helps hold the galaxy together.

This is just one of many interesting observations to come. Scientists discovered dark matter in the 1930’s, and many discoveries have been made since then, including the very recent discovery just mentioned-a fluid possessing a negative mass. It is likely that new observations will be made in the next 50-100 years, as technology becomes more advanced and we are able to see more things that the average human eye can’t see by itself.













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