Ask Me Help Desk - Galaxies Space

Galaxies Space

Is there a possibility that other Galaxies might have life in them?

Yes

Like what kind of life is there?

I can't give you any specifics but presumably a lot of different forms of life out there

Quote:

Originally Posted by albear

i can't give you any specifics but presumably alot of different forms of life out there

Ah well thanks you for answering. :)

Welcome :)

Hello I:

There are more galaxies in the Universe than there are grains of sand on all the beaches on Earth. Given those numbers, what do you think the odds are that only ONE has life?

excon

Quote:

Originally Posted by excon

Hello i:

There are more galaxies in the Universe than there are grains of sand on all the beaches on Earth. ...
excon

Hello excon: not to pick at nits, but sometimes we deal with numbers so large they lose all real meaning. Your point that there are a lot of galaxies in the universe is a good one - I've seen estimates of around 100 Billion, or 10^11. That's huge! However, have you ever tried to calculate the number of grains of sand on the earth? That number is really huge - much much greater than 100 billion. Back of the envelope calculation: if a grain of sand has volume of 1 mm^3, there would be 10^9 grains of sand in a cubic meter of beach sand. A single small beach that is 100 meters long by 10 meters wide by 1 meter deep (a pretty small beach) would contain 10^12 grains of sand, which is greater than the estimated number of galaxies in all the universe.

Here's a calculation that estimates more than 10^18 grains of sand on all the beaches of the earth: Grains of Sand on the World's Beaches That's approximately 10^7 times more than the estimated number of galaxies in the universe. However, since an average galaxy is assumed to have around 10^11stars, that means that the total number of stars] in the universe is inded much greater than the number of grains of sand on all the beaches on earth.

Quote:

Originally Posted by ebaines

Hello excon: not to pick at nits, but sometimes we deal with numbers so large they lose all real meaning. Your point that there are a lot of galaxies in the universe is a good one - I've seen estimates of around 100 Billion, or 10^11. That's huge! However, have you ever tried to calculate the number of grains of sand on the earth? That number is really huge - much much greater than 100 billion. Back of the envelope calculation: if a grain of sand has volume of 1 mm^3, there would be 10^9 grains of sand in a cubic meter of beach sand. A single small beach that is 100 meters long by 10 meters wide by 1 meter deep (a pretty small beach) would contain 10^12 grains of sand, which is greater than the estimated number of galaxies in all the universe.

Here's a calculation that estimates more than 10^18 grains of sand on all the beaches of the earth: Grains of Sand on the World's Beaches That's approximately 10^7 times more than the estimated number of galaxies in the universe. However, since an average galaxy is assumed to have around 10^11stars, that means that the total number of stars] in the universe is inded much greater than the number of grains of sand on all the beaches on earth.

But even this pales in comparison to the number of times homeopaths dilute their solutions where you're often talking 10^60 water molecultes to each active ingredient molecule or more... strangely puts it all in perspective... :)