Sat 19 Jul, 2008 03:21 pm - I watched that video, it says the universe has a radius of 47 billion light years, where did it get that number from? Also at the end it says "This is a picture of 47 billion light... (view)
Sat 19 Jul, 2008 09:03 am - I have been thinking of this for a while. Scientists say that they are able to see galaxies from 12/13 billion light years away. But that would mean that the galaxy had to be 12/13 billion light... (view)
