2007-05-07 18:36:19 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
Well, if every star came with a planet like Earth that had billions of sand
grains, there would have to be more sand grains than stars! The number of
stars in our galaxy is around 100 billion or 10^11 in exponential notation.
The number of sand grains on earth is probably somewhere between 10^20 and
10^24. The number of sand grains on Earth is therefore much greater than
the number of stars in our galaxy. However, our galaxy is only one of about
100 billion in the visible universe, and so the total number of stars we
know about is around 10^22, which is kind of in the same ballpark as the
number of grains of sand on Earth. Of course, those numbers are much bigger
than we can count - I am not sure whether better estimates of both numbers
would give more stars, or more sand grains - there is a lot of both!
2007-05-07 18:37:22 · answer #1 · answered by spaceprt 5 · 1⤊ 2⤋
If there are hundreds of millions of stars in our galaxy... and if there are hundreds of millions of galaxies in our universe... I'd have to say there are definitely more stars than grains of sand on Earth.
According to one theory, the universe is infinite and new stars and galaxies are born as we speak.. so, if new stars are constantly being added, there will eventually be more stars than grains of sand if that isn't the case already :)
2007-05-07 18:41:36 · answer #2 · answered by John T 5 · 0⤊ 0⤋
The universe is infinite, but there are a finite number of sand grains (on Earth, anyway).
2007-05-07 18:41:17 · answer #3 · answered by Lizzie5 2 · 0⤊ 0⤋
Yes, at least counting only grains of sand on earth.
2007-05-07 18:39:14 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Yes. If the universe were a beach, the area that is accessible to us humans is about the size of a grain of sand (according to Brian Greene).
UPDATE: Note that "Astronomer" quoted his source as "I'm an astronomer," yet it's a clear copy & paste from http://www.newton.dep.anl.gov/askasci/ast99/ast99215.htm
Thumbs down for plagerism.
2007-05-07 18:40:37 · answer #5 · answered by Mickey Mouse Spears 7 · 2⤊ 0⤋
yes, I remember hearing that in science class, more stars than every grain of sand on every beach in the world.
2007-05-07 18:39:32 · answer #6 · answered by Anonymous · 0⤊ 0⤋
stars, by far.
The universe is (nearly) infinite.
Stars visible only: 70,000,000,000,000,000,000,000 (70 sextillion)
There are merely 7,500,000,000,000,000,000 grains of sand on Earth
i got the numbers from a quick "googling," so don't trust them. But there still are more stars.
2007-05-07 18:46:46 · answer #7 · answered by eV 5 · 1⤊ 0⤋
I would guess that in our solar system there are more grains of sand.
2007-05-07 18:44:37 · answer #8 · answered by Will 2 · 0⤊ 0⤋
Way more sand.
Wow what a long dumb answer haha.
2007-05-07 18:40:50 · answer #9 · answered by Jordan P 1 · 0⤊ 0⤋
probably the same
2007-05-07 18:40:24 · answer #10 · answered by ogg08 5 · 0⤊ 0⤋