New Law of Gravity Could Mean No Dark Matter

Dark matter was postulated in the 1970s, as astronomical observations revealed that the behaviour of stars in galaxies did not agree with Newton’s law of gravity.

According to Newton, the attraction exerted by a large body on a smaller, orbiting body decreases very quickly with distance. This means that the stars the furthest away from galactic cores should be flung into space due to the high rotational speed of the galaxy, if just the mass of visible matter held on to them. So, scientists added a force exerted by unknown, invisible matter, which could make the equation of the universe apply.

However, scientist Mordehai Milgrom has invented the MOND theory, according to which Newton’s law only applies to small systems. If gravity decreases less across long distances, galaxies do not need dark matter to remain intact.

PROOF: The new law of gravity cannot be proved by experiments, as the changes only make an impact across distances of thousands of light years. The theory might be supported by astronomical observations.