How many stars are there?

Stars intense luminous sphere and plasma. Formed stars gathered Judge of the visible universe of galaxies. Daylight, including on the early Earth (energy) source of most,which is the nearest star to us the sun. Other stars, the sun appears in the light of the night sky but not this time.Occurred because of extensive star in the nuclei of nuclear fusion (fusion) reactionssonradış released into space, via Man ​​Star Cement  ,(radiation) and infectious.The stars did not exist, which nor the elements of life (elements) may have much.

At least 100 billion galaxies in the universe and each galaxy assumed that at least 200 billion stars. Report Sun, then how many in the Universe. This number: 20 000 000 000 000 000 000 000



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