Calgarypuck Forums - The Unofficial Calgary Flames Fan Community - View Single Post - What's the furthest object you've ever seen? How about 7.5 billion light years?

worth · 03-20-2008, 01:20 PM

I'm not a physicist but... it would have had to happen at least 7.5 billion light years ago. even though the universe is expanding, it is empty space that is expanding faster than the speed of light. photons cannot excede the speed of light no matter if the universe is expanding faster than the speed of light or not.

So yes, this GRB happened long before any of us were born...in face, it happened before this planet was formed and in fact happened before this solar system was formed.

I tell you what though, if you were anywhere in the vacinity of this thing, you'd be pretty dead. Luckly this sort of thing hasn't happened to our next door neighbours or we could be in some serious trouble.

03-20-2008, 01:20 PM	#9
worth Franchise Player Join Date: Jun 2004 Location: Vancouver Exp:	I'm not a physicist but... it would have had to happen at least 7.5 billion light years ago. even though the universe is expanding, it is empty space that is expanding faster than the speed of light. photons cannot excede the speed of light no matter if the universe is expanding faster than the speed of light or not. So yes, this GRB happened long before any of us were born...in face, it happened before this planet was formed and in fact happened before this solar system was formed. I tell you what though, if you were anywhere in the vacinity of this thing, you'd be pretty dead. Luckly this sort of thing hasn't happened to our next door neighbours or we could be in some serious trouble.