Did you know that only about 4% of the total matter and energy of the universe consists of atoms, that form ordinary matter from which new forms, plants, stars and gas interstellar?

Instead there is a new form of matter which is approximately 26% of the structure of the universe.

Ordinary matter does not interact with this new form of matter than gravity. Thus, light passing through it matters undisturbed, and the matter is invisible.

It was called though no matter invisible, but dark matter or dark matter. Its existence is deduced indirectly from measurements experimental movements of stars in galaxies and of galaxies in clusters of galaxies.

But an elementary particle dark matter has not yet been discovered in the laboratory. It is but one of the priorities of the great accelerator, the Large Hadron Collider which started in autumn 2009 in Geneva and with the participation of researchers from Romania.

Last but not least, about 70% of the universe is constituuit a new form of energy, called and her equally mysterious dark energy or dark energy. It is a kind of energy of the void, that is held even by absolute space empty.

This energy is the cause for the universe is not only expanding, as it was known from the Hubble in 1930, but is expanding accelerated. Universe expand ever faster and we know that approximately 20 years, there has been a revolution in cosmology, because satellites efficient launch particularly with the purpose of studying the Universe at distances as great.

Thus, each galaxy in the universe is moving away in November, less galaxies in the local group of galaxies, which are held together by gravity. For example, our galaxy and Andromeda Galaxy will collide little over 7 billion years.

The universe is here, most fascinating and mysterious than expected 20 years ago. Only 4% of the universe is understood and explained by the laws of current science, namely the Standard Model of elementary particles and interactions between them. The remaining 96% as explained?

Here therefore the main purpose of theoretical physicists and experimentalists in elementary particle physics.

Image via Wikipedia

Image via Wikipedia