article_snippet: When physicists study the dynamics of galaxies and the movement of stars, physicists are confronted with a mystery.
article_snippet: If physicists only take visible matter into account, physicists equations simply don't add up; the elements that can be observed are not sufficient to explain the rotation of objects and the existing gravitational forces.
article_snippet: From this physicists deduced that there must be an invisible kind of matter that does not interact with light but does, as a whole, interact by means of the gravitational force.
article_snippet: That would have been the prelude to the start of particle .
article_snippet: designed to mimic conditions just after the Big Bang at the dawn .
article_snippet: of the known universe.
article_snippet: announced the discovery of a new subatomic particle, a basic .
article_snippet: building block of the universe, which appeared to be the boson .
article_snippet: imagined and named half a century earlier by theoretical .
article_snippet: known as the Standard Model of how the known universe works at the . level of elementary particles, and into 'New Physics.'
article_snippet: about 96 percent of the stuff of the known universe but can only be . detected by the known universe influence on visible matter around the known universe.
article_snippet: humankind's quest to understand our universe is little more than .