No. He was there 1 million years ago. He is probably long dead (depending on the lifespan of these aliens). What he sees is the Earth as it was 2 million years ago.

 

hello. sorry about this question here, but so which direction we have to look to see the moment of BB of our universe?

 

hello. sorry about this question here, but so which direction we have to look to see the moment of BB of our universe?

 

Any direction (the big bang happened - and is still happening - everywhere). The earliest we can see is 360,000 years after the big bang when the density of the universe decreased enough to let photons travel across space. This is what we now see as the cosmic microwave background.

Edited November 23, 201411 yr by Strange

The earliest we can see is 360,000 years after the big bang...

 

It is 380,000 years. (a typing error?)

 

It is 380,000 years. (a typing error?)

 

Or bad memory!

The universe is still expanding (and accelerating). Since the universe is borned 13.7 billion years ago, the furthest point we can see must be 13.7 billion light years away. But since space is expanding, the proper distance would be about 47 billion light years away.

 

It is 380,000 years. (a typing error?)

Why do you ask?

 

This site says it's about twice that

http://hyperphysics.phy-astr.gsu.edu/hbase/astro/astref.html

but it's not an easy thing to estimate.

The BB happened (also) here.

 

Any direction (the big bang happened - and is still happening - everywhere). The earliest we can see is 360,000 years after the big bang when the density of the universe decreased enough to let photons travel across space. This is what we now see as the cosmic microwave background.

 

yes, that's correct, thank you. but I mean the moment of explosion , isn't was supposed to be the blink of light ( if i can say so ) exactly in a moment, i mean something like nuclear explosion first light after what has happened.. can you explain me this? I not really understand it...

 

yes, that's correct, thank you. but I mean the moment of explosion , isn't was supposed to be the blink of light ( if i can say so ) exactly in a moment, i mean something like nuclear explosion first light after what has happened.. can you explain me this? I not really understand it...

 

Well, it is misleading to think of it like an explosion.

 

Again, the big bang happened everywhere. Perhaps the easiest way to visualise it is to "wind the clock back" so that all the galaxies get closer and closer together. Eventually they are all in the same place - so the big bang happened where every galaxy is (i.e. everywhere).

 

Well, it is misleading to think of it like an explosion.

 

Again, the big bang happened everywhere. Perhaps the easiest way to visualise it is to "wind the clock back" so that all the galaxies get closer and closer together. Eventually they are all in the same place - so the big bang happened where every galaxy is (i.e. everywhere).

 

no.. it is supposed to be better explanation for that, for me it is not enough only this, thanks anyway.

 

no.. it is supposed to be better explanation for that, for me it is not enough only this, thanks anyway.

We are surrounded by past of big bang, though space of big bang was so small.

We are surrounded by past of big bang, though space of big bang was so small.

 

yes, maybe I was supposed to say that I'm happy with yours answers. probably I'm burn some processors to lift up this question here..

!

Moderator Note

 

Off-topic question about the ether and followups have been split

http://www.scienceforums.net/topic/86673-big-bag-and-ether-split-from-direction-of-the-big-bang/