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I have Sagan's book in front of me now and see where he estimates the number of stars, but I see no calculation of the number of grains of sand on Earth. I have often heard this statement and often seen estimates of the number of stars, but I have never seen it backed up with any estimate of the number of grains of sand on Earth. I have read that one wheelbarrow holds the same number of sand grains as one galaxy holds stars, but is there really less than 100 billion wheelbarrows of sand on Earth? Say each one is a cubic yard, that would be about a 500 mile square area one yard deep. I bet there is more sand than that on Earth.

2006-07-28 16:16:30 · answer #1 · answered by campbelp2002 7 · 0 0

No defiantly not. in actuality our very own galaxy the Milky way has greater stars than there are grains of sand on earth, And in case you think approximately the style of Galaxies interior the finished universe you start to visualize the immensely vastness of the universe; which isn't, as many times believed limitless. the present estimate for the size of the universe is 40 six.5 billion gentle years with the style of galaxies anticipated at one hundred twenty five billion. Our very own galaxy has a minimum of a hundred billion stars.

2016-12-10 16:40:27 · answer #2 · answered by ? 4 · 0 0

Definitely

This is a very good question! There are too many stars for scientists to actually count one-by-one, so other methods of estimating the total number of stars are used. We believe that there are on the order of 1021 stars in our Universe. If you write that number out, it looks like this: 1,000,000,000,000,000,000,000. This is a lot of stars!

2006-07-28 10:13:44 · answer #3 · answered by Anonymous · 0 0

It was the late, great cosmologist Carl Sagan said this. Read his book - Cosmos.

It isn't a theory. He did a rough calculation.

And of course, if you multiple 200 billion stars in a galaxy by 100 billion galaxies, you get one big number.

2006-07-28 12:43:56 · answer #4 · answered by nick s 6 · 0 0

wow thats some tough question to answer well the question puts up more questions in my mind


the number of stars in the universe ---------- infinite
sand on earth --------------------------------------infinite
number of living cells on earth ----------------- infinite
number of ppl already dead --------------------- infinite
energy on earth ------------------------------------ infinite


well so i could go on and on life is infinite if you see from one angle and from the other angle it just sems like a flash in this universe........ its the irony of life nothing is explained....................... nothing is true but nothing is false either and there is nothing in between....
i know it might not make sense but still in a wqeird manner it makes sense




alright bye hope you get the gist of it
cheers........

2006-07-28 10:16:07 · answer #5 · answered by Shravan 1 · 0 0

of course it does!!! the universe never ends but the sand does!!!! so what do you think!!!!

2006-07-28 10:52:54 · answer #6 · answered by cutie pie!!! 2 · 0 0

Yes.

2006-07-28 12:17:53 · answer #7 · answered by kano7_1985 4 · 0 0

Could be.

2006-07-28 10:10:44 · answer #8 · answered by Anonymous · 0 0

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