I was thinking the same thing today at work. 156B ly wide? In what
direction? If you use the 3-D spherical model and inward toward the
past and origin is 13.5B ly, then 'wide' is pi*d or 2*13.5*pi which is
about 85B ly 'around'. Maybe they are using a complicated saddle
shape?

Kirk


(David Jones) wrote in message . com...
Klaatu wrote in message ...
Universe 156 Billion Light-Years Wide

http://www.space.com/scienceastronom...ay_040524.html
"If you've ever wondered how big the universe is, you're not alone.
Astronomers have long pondered this, too, and they've had a hard time
figuring it out. Now an estimate has been made, and it's a whopper.

The universe is at least 156 billion light-years wide."

Sorry I can't buy that. I read the article and I'm no Astrophysist
but... If the speed of light is a constant and the universe is some
13.5 billion years old... than the universe is expanding at a speed
which is faster than the speed of light (which I am told is an
impossibility).

Now I'm fine with that provided that the speed of light isn't the
constant that everyone makes it out to be.

Sorry don't get it...