The universe facts

  Our universe is full of many many mysterious things and unknown objects and bodies which we can't know. The same is true of galaxies in clusters, which leads scientists to believe that something we cannot see is at work. They think something is missing by us, from where our galaxies extra mass is came. DARK MATTER:-                                      One question is always irritate us that "Form which thing that our universe is made form?" And it is a nice questions about our universe.                     Many of you are thinking that " what are you talking, it is obvious that the universe is made form the matter". Yes this is right answer I can't refuse it but which matter, yes I am which matter ?                     There are two types of matter in our universe  1. Normal matter  2. Dark matter  Normal matter is that which is made us and many many thighs in the universe is made by normal matter but not all the things is made by normal matter.