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en.wikipedia.org/wiki/Observable_universe

The observable universe is a spherical region of the Universe comprising all matter that can be ..... Stars are organized into galaxies, which in turn form galaxy groups, galaxy clusters, superclusters, ..... of the chemical elements), calculating the estimated total number of atoms in the observable Universe is straightforward .

www.space.com/26078-how-many-stars-are-there.html

May 17, 2017 ... The exact number of stars is impossible to know because we aren't sure how big the universe is.

www.npr.org/sections/krulwich/2012/09/17/161096233/which-is-greater-the-number-of-sand-grains-on-earth-or-stars-in-the-sky

Sep 17, 2012 ... Now the population of stars jumps enormously, to 70 thousand million, million, million stars in the observable universe (a 2003 estimate), so ...

www.esa.int/Our_Activities/Space_Science/Herschel/How_many_stars_are_there_in_the_Universe

It has been said that counting the stars in the Universe is like trying to count the number of sand grains on a beach on Earth. We might do that by measuring the ...

blogs.discovermagazine.com/80beats/2010/12/01/the-estimated-number-of-stars-in-the-universe-just-tripled

Dec 1, 2010 ... And besides tripling the number of stars in the universe (isn't that enough??) and infuriating some astronomers, van Dokkum's find has some ...

www.livescience.com/56634-how-many-stars-are-in-the-universe.html

Oct 25, 2016 ... Scientists can estimate the number of stars in the universe by multiplying the average number of galaxies by the average number of stars.

scienceline.ucsb.edu/getkey.php?key=3775

There are about 10 billion galaxies in the observable universe! The number of stars in a galaxy varies, but assuming an average of 100 billion stars per galaxy ...

wonderopolis.org/wonder/how-many-stars-are-in-the-sky

As technology improves and we get even better glimpses at the far corners of the universe, we may eventually find that the number of stars is even greater than ...

www.cosmotography.com/images/m8-m20_desc.html

The number they calculated was seven quintillion five quadrillion (that's 7.5 followed by ... So, the best way to count the total number of stars in the Universe is to ...