It MATTERS a lot!!!

We all know that anything which has mass and occupies space is known as matter. The whole universe is made up of matter. Matter consists of tiny particles called atoms.  This atomic matter is in turn made up of interacting subatomic particles —usually a nucleus of protons and neutrons, and a cloud of orbiting electrons.

Well, the only 4.9% of the universe is occupied by the ordinary matter. Now what do I mean by this ordinary matter? It is the normal matter which is composed of atoms, ions, electrons and the objects they form.  This matter includes stars, which produce nearly all of the light we see from galaxies, as well as interstellar gas in the interstellar and intergalactic media, planets, and all the objects from everyday life. But what about the rest?

There is another mysterious kind of matter which occupies about 26.8% of the universe it is known as the dark matter. Dark matter is a hypothetical kind of matter. It's name refers to the fact that it does not emit or interact with the electromagnetic radiation. Although dark matter has not been directly observed, its existence and properties are inferred from its gravitational effects such as the motions of visible matter.  Dark matter is transparent to electromagnetic radiation  or is so dense and small that it fails to absorb or emit enough radiation to be detectable with current imaging technology.

In particle physics we can find the references of the word antimatter. Now what is it all about?  Well antimatter is composed of  antiparticles. In simple antiparticles are the particles which are exactly same as the particles of ordinary matter but  have opposite charges. Examples positrons e⁺ ( antiparticles of electrons), antiprotons.

Just like the universe keeps on expanding the world of science too keeps on advancing. Science is organized knowledge and it's all about imagination and curiosity to ask question.

By:-  Pranorup Mandal