What happens to light when it reaches the edge of the universe?

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Light cannot reach an "edge" of the universe because current cosmological models suggest the universe is curved and does not have a defined boundary. Instead, light traveling in one direction could eventually loop back to its starting point due to the universe's curvature. The expansion of the universe is accelerating, meaning that regions of space can recede faster than the speed of light, preventing light from reaching these areas. The concept of an edge contradicts the principle that energy cannot be created or destroyed, as light must continue traveling through space. Overall, the universe is understood to be infinite or boundless, with no actual edge to reach.
  • #91
ebos said:
I would assume that the further one looks out towards the "edge" the closer one gets to the "beginning. No matter which direction you look out into space, the earlier you will see. So the 'edge' is the beginning with us seemingly at the center. This 'center' is everywhere since the 'big bang' started everywhere. Also, since space is curved, the radius of the observable universe is equal to its circumference. Hey, it works for me but since we in no way can ever understand these concepts (never say never) it will probably always remain a mystery. better to just go out and have a nice cold beer. Once in a while it is just OK to say, "I don't know".

did you notice that it's been over 3 yrs since this thread was last responded to ?
 
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  • #92
davenn said:
did you notice that it's been over 3 yrs since this thread was last responded to ?
Yes, my head is still sore where I just slapped it.. I noticed that about 10 secs after I posted. Hey, I've got Oldtimer's Syndrome. Wait till you're 62
 
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  • #93
ebos said:
Yes, my head is still sore where I just slapped it.. I noticed that about 10 secs after I posted. Hey, I've got Oldtimer's Syndrome. Wait till you're 62

Am only a handful of yrs behind you, I know the feeling wellDave
 
  • #94
davenn said:
Am only a handful of yrs behind you, I know the feeling wellDave
Ah you youngsters, always complaining. I'm way older and I still have a mind like a steel trap and a memory like an elephant. Now if I could just remember where I put the peanuts.
 
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  • #95
phinds said:
Ah you youngsters, always complaining. I'm way older and I still have a mind like a steel trap and a memory like an elephant. Now if I could just remember where I put the peanuts.

:-p :-p :-p :-p hahaha
 
  • #96
Thread closed. You are welcome to start a new one.
 

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