The theory of gravity falters after more than 300 years immovable | Life

The law of universal gravitation is a physical law that describes the gravitational force or interaction between different bodies with mass, it was formulated by Isaac Newton and, since then, no one has questioned it. Today, the apple that started it all may not fall from the tree.

Astrophysicists have observed puzzling behavior in stars that seems to challenge our current understanding of the gravity. Interestingly, the observations dovetail with an alternative theory of gravity which could negate the need for dark matter.

Although superseded by Einstein’s theory of general relativity, the law of universal gravitation Newton it’s still a good explanation of the large-scale structure and motions of the universe. But now we have new observations that don’t quite fit these models.

An international team of astrophysicists has been researching open star clusters, which contain thousands of young stars that are born from a large cloud of dust and gas. These clusters have a relatively short life before they dissolve, as the stars drift into two “tails”: one in front of the cluster and one behind.

In the past it has been difficult to determine which stars in a cluster belong to which tail, but the researchers behind the new study developed a method to do so.

To their surprise, they found that in all four clusters studied, the leading tail had many more stars than the trailing one, in apparent contradiction to the famous Newton law.

An experiment with stars to overthrow Newton’s laws

So the team simulated the motions of the stars in these clusters according to a different hypothesis, known as Modified Newtonian Dynamics (MOND). This model suggests that the effects of gravity are stronger at low accelerations than in Newton’s laws. Interestingly, the predictions of this model fit the observations very well.

And this is not the only way that the MOND model better fits real-world observations. Star clusters in nearby galaxies have been found to dissolve faster than Newton’s laws predict.but this would be a natural byproduct of MOND.

Another of the main implications of MOND could make shake astrophysics as we know it: if it were true, dark matter would not exist. This mysterious substance was invented in the 1930s to explain discrepancies in the observed motion of stars and galaxies.

Dark matter fills the void by adding huge amounts of dough invisible, which scientists have been searching for ever since. Decades of experiments designed to detect dark matter particles have failed. Touching gravity is touching everything.