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Title: How many galaxies are there in the observable universe? Post by: killian on Apr 29, 2014 How many galaxies are there in the observable universe?
A) roughly (within a factor of 10) the same as the number of stars in our galaxy B) roughly a thousand times more than the number of stars in our galaxy C) about as many as the number of stars we see in the sky with our naked eyes D) about as many as the number of grains of sand on all the beaches on Earth E) infinity Title: Re: How many galaxies are there in the observable universe? Post by: padre on May 17, 2014 Content hidden
Title: Re: How many galaxies are there in the observable universe? Post by: killian on May 17, 2014 Thanks for helping me with my astronomy class
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