It is known that the
universe after the Big Bang has undergone swift increase, during which its
volume increased to a staggering 80-degree! Universe and then continued its extension,
but the recent increase in size was accelerated, resulting in a region of the
universal signal extended outside.
For "writing"
a detailed history of the expansion in the boss method, called "baryon
acoustic oscillations-oscillations" (BAO). Physicists call ordinary
baryons and all the usual matter.