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StringedInstruments
Auburn Fan
Member since Oct 2013
15421 posts

No matter what direction we point a telescope, we always look toward the Big Bang - why?

I’m having trouble wrapping my brain around this.

Say the United States and China each had a “James Webb” kind of telescope on the ground. We both point them in opposite directions towards a patch of the sky at the same time. If both telescopes could see back 13.8 billion years, they’d both see the Big Bang.

So no matter where a telescope looks, it always looks at where light originates from before reaching our current position in space.

But if the universe is expanding and we’re moving “forward,” shouldn’t there be a direction where we’d say, “that’s the direction we’re moving”?

And wouldn’t it show empty space since light from that spot hasn’t existed yet to reach us?

But from what I’ve read, that’s not how it works. Why is that?
This post was edited on 7/28 at 7:47 am


Lonnie Utah
The Citadel Fan
Utah!
Member since Jul 2012
17216 posts
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Because the universe is expanding at different rates.


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Kankles
New Orleans Saints Fan
Member since Dec 2012
5623 posts

Because that’s how God made it


tom
Baton Rouge
Member since Jun 2007
7819 posts

The farther away you look, the older what you see is. So if you are looking billions of light years away in any direction, you are looking at light that is billions of years old.


DownshiftAndFloorIt
LSU Fan
Here
Member since Jan 2011
62649 posts

Idk man. I got nothing. Because light doesn't travel in a straight line?


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jacobforpresident
LSU Fan
BR
Member since Sep 2009
55 posts
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My understanding is that the "big bang" marks the beginning of the expansion of space outward from a single point in all directions, much like a bubble or a balloon.

From our perspective inside the bubble/balloon, we see the outer "skin" any direction we look.


Zephyrius
LSU Fan
Wharton, La.
Member since Dec 2004
7210 posts

quote:

Because that’s how God made it


Its an interesting dichotomy for those who want to use science as an agenda to prove there is no God.

What if its true that the early Church Fathers were correct that the earth is the center of the universe. For those who want to disprove God that would be devastating.


I20goon
LSU Fan
about 7mi down a dirt road
Member since Aug 2013
11666 posts

quote:

But if the universe is expanding and we’re moving “forward,” shouldn’t there be a direction where we’d say, “that’s the direction we’re moving”?
because it isn't expansion, it is inflation.

We, in general and in the context of this subject, aren't moving in space, space is moving and we are along for the ride.

The only analogy I can think of as a southerner...
You're fishing in Mobile Bay and have dropped anchor. Your anchor is a good one and additionally it is caught on a pipeline so you aren't going anywhere. But for some reason plate tectonics pushed you 80 miles towards the Yucatan. You are now 80 miles further from Pascagoula, but didn't move.


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DownshiftAndFloorIt
LSU Fan
Here
Member since Jan 2011
62649 posts

quote:

we see the outer "skin"


But what's outside the balloon????


DarthRebel
Ole Miss Fan
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19069 posts
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The Big Bang is not a real thing, it is just a placeholder because science does not know.

It is easier and more logical to believe in God, than the Big Bang.


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the LSUSaint
LSU Fan
Member since Nov 2009
15384 posts

Bigger question is why the frick do you care? Knowing staring at a light thousands of years old, before it reaches us, is a retarded exercise.
There is nothing we can do about that light anyway. We could see a solar Tsunami heading towards earth, and there is ZERO we can ever do about it. Earth is where it is now, or we will cease to exist, period. We can't start her up and head to "dry land" to escape the Tsunami (example)


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ParIV
LSU Fan
Baton Rouge
Member since Apr 2004
2076 posts

quote:

What if its true that the early Church Fathers were correct that the earth is the center of the universe. For those who want to disprove God that would be devastating.


And what if the moon was made of cheese....would you eat it?


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SirWinston
LSU Fan
PNW
Member since Jul 2014
68199 posts

quote:

It is easier and more logical to believe in God, than the Big Bang.




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JudgeHolden
LSU Fan
Gila River
Member since Jan 2008
16612 posts

Because the earth is flat.


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Tiger1242
LSU Fan
Member since Jul 2011
30565 posts

quote:

What if its true that the early Church Fathers were correct that the earth is the center of the universe.

But it’s not true


Abstract Queso Dip
Member since Mar 2021
5853 posts

It's because you are looking back in time. Everything you see has already happened. We don't have telescopes yet that can see the future.
This post was edited on 7/28 at 8:07 am


Zephyrius
LSU Fan
Wharton, La.
Member since Dec 2004
7210 posts

quote:

But it’s not true

Maybe; maybe not. Those saying its not true is only based on theory.


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jacobforpresident
LSU Fan
BR
Member since Sep 2009
55 posts
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If you figure that out you get a Nobel Prize.


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squid_hunt
Baton Rouge
Member since Jan 2021
9124 posts

quote:

It's because you are looking back in time.

It's not back in time. It's across distances. It just takes a long time for the light to get here. His question is if the earth is not the center of the universe, why is there space 13 billion light years in all directions in a 13.8 billion year old universe.


J Murdah
LSU Fan
Member since Jun 2008
39098 posts

I dont think anyone here is smart enough to give a logical answer to that.


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