it is believed that there are about 10^11 galaxies in the universe containing 10^11 stars (in each galaxy)

it is believed that there are about 10^11 galaxies in the universe containing 10^11 stars (in each galaxy). But that's really an estimate of number of galaxies and stars they might differ but till now it is believed to be accurate . As there are numerous galaxies in our universe and all are moving far away (big bang theory <which proves that the galaxies are moving far away from each other , as the distance between the galaxies increases their speed also increases > ) . Accurate number of galaxies as per me could only be measured when this universe collapses again after billions of years ( as per pulsating universe theory < a theory according to which the universe would expand for a great duration of time and would again collapse >).