<p>Dark Energy is the mystery of the greatest nature in the universe, because of this unique fact that is believed to be around us, and that explains why there seems to be an anomaly in the law of gravity. According to the law of gravity, large objects such as clusters of galaxies must attract each other, and this gravitational tug must be on another object. But this is not the case, and the fact is that groups of galaxies move farthest apart. This is due to the fact that the universe continues to grow at an extraordinary rate.</p><p>the scientists developed the theory of Dark Energy, which has the opposite effect of gravity, pushing things apart. Mathematical calculations show that they do exist and make up 74% of our universe, beyond gravity, and this is why the universe extends out. But we still don't have conclusive evidence, so it remains a mystery to nature for us.</p>