The Big Bang Theory is the description of how the universe is form.According to this all matters in the universe came to existence at the same time at which the Big Bang occurs during 13.8 millions years ago.
According to the astronomers there was a big explosive around 10 to 20 millions years ago which lead to the separation of space,time,matter and energy in the universe.
Dark matter consists of such particles which were not yet characterized.The dark matter neither emits energy nor absorb it.
energy consists of particles which were known by alpha particles,beta particles and gamma particles.
core of stars and even our own sun consists of a particles normally known as nucleosome core particle which is almost consists of about 46 base pairs of DNA.