Deep Space
 

Re: Deep Space
 

Bah, heresy! The sun revolves around the earth which is flat and lies on the back of a giant turtle!

great vid, i had that pic as my desktopp for a while

Re: Deep Space
 

If the age of the universe is somewhere around 15 billions years, how can it be 78 billion light years large? Time distortion? If so, is the universe much older relative to an object that isn't travelling outward as fast as we are?

Re: Deep Space
 

10,000 Galaxies: A Hubble Telescope Image

http://img.photobucket.com/albums/v7...r/Universe.jpg

Re: Deep Space
 

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If the age of the universe is somewhere around 15 billions years, how can it be 78 billion light years large? Time distortion? If so, is the universe much older relative to an object that isn't travelling outward as fast as we are?

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I'm not sure, but I think it's because of how fast everything expanded immediately after the big bang.

Re: Deep Space
 

[ QUOTE ]
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If the age of the universe is somewhere around 15 billions years, how can it be 78 billion light years large? Time distortion? If so, is the universe much older relative to an object that isn't travelling outward as fast as we are?

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I'm not sure, but I think it's because of how fast everything expanded immediately after the big bang.

[/ QUOTE ]

Perhaps the problem is that you are assuming the narrator is correct.

Re: Deep Space
 

[ QUOTE ]
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[ QUOTE ]
If the age of the universe is somewhere around 15 billions years, how can it be 78 billion light years large? Time distortion? If so, is the universe much older relative to an object that isn't travelling outward as fast as we are?

[/ QUOTE ]

I'm not sure, but I think it's because of how fast everything expanded immediately after the big bang.

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Perhaps the problem is that you are assuming the narrator is correct.

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Perhaps, but I think it's an established fact the universe is larger (in terms of light years), than it is old.

Re: Deep Space
 

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[ QUOTE ]
If the age of the universe is somewhere around 15 billions years, how can it be 78 billion light years large? Time distortion? If so, is the universe much older relative to an object that isn't travelling outward as fast as we are?

[/ QUOTE ]

I'm not sure, but I think it's because of how fast everything expanded immediately after the big bang.

[/ QUOTE ]

Perhaps the problem is that you are assuming the narrator is correct.

[/ QUOTE ]

Perhaps, but I think it's an established fact the universe is larger (in terms of light years), than it is old.

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Of course, if you assume a perfectly spherical universe with the big bang happening at its center, and the universe expanding at the speed of light, being 15 billion years old, it would be 30 billion light years across.

Of course it can't be that uniform.

Re: Deep Space
 

[ QUOTE ]
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[ QUOTE ]
[ QUOTE ]
[ QUOTE ]
If the age of the universe is somewhere around 15 billions years, how can it be 78 billion light years large? Time distortion? If so, is the universe much older relative to an object that isn't travelling outward as fast as we are?

[/ QUOTE ]

I'm not sure, but I think it's because of how fast everything expanded immediately after the big bang.

[/ QUOTE ]

Perhaps the problem is that you are assuming the narrator is correct.

[/ QUOTE ]

Perhaps, but I think it's an established fact the universe is larger (in terms of light years), than it is old.

[/ QUOTE ]

Of course, if you assume a perfectly spherical universe with the big bang happening at its center, and the universe expanding at the speed of light, being 15 billion years old, it would be 30 billion light years across.

Of course it can't be that uniform.

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the speed at which the universe expands is also always increasing. also leading theories suggest that the universe is perfectly uniform.

Re: Deep Space
 

Wow! Sick! Nice thread!

Re: Deep Space
 

Does science always turn you into a creepy child molester?

Re: Deep Space
 

The figure of 78 billion light years is known as the comoving distance.

The furthest, oldest objects we can see are around 13.5 billion light years away in each direction. So that is the radius of our visible universe. But... we see those objects where they were 13.5 billion years ago. Due to the expansion of the universe, they are now estimated to be something around 78 billion light years away (the comoving distance).

The narrator got it wrong though, he said the universe is estimated to be 78 billion light years across, then he should have said 78 billion light years in radius.

And this all just refers to the visible, or observable universe, which is all we can know about due to the speed of light and the age of the universe. It could actually be a lot bigger than that.