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Home Q & A Board Science-Related Homework Help Physics Astronomy
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killian killian
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10 years ago
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
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padrepadre
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#1
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10 years ago
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killian Author
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#2
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10 years ago
Thanks for helping me with my astronomy class
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