Heads up - Dara O Briain's Science Club - BBC2 @ 9pm
Discussion
driverrob said:
"In 60 billion years time galaxies could be flying apart faster than the speed of light" !!!!!!!
On what basis?
If I had a theory of something and developed a mathematical model which predicted something like that I wouldn't want to admit it.
No, the Cosmos is expanding faster that C right now.On what basis?
If I had a theory of something and developed a mathematical model which predicted something like that I wouldn't want to admit it.
Engineer1 said:
The thing is the universe must have expanded faster than the speed of light 13.75 billion years yet the visible radius of the Universe is 46 billion light years so if the speed of light is the speed limit for expansion where did the extra 33 billion years worth of space come from?
This is the 'inflationary period'.The 46bn ly radius is all filled with light, but as it is expanding faster than light (as in faster than times arrow) we cannot see it and as the Cosmos is already expanding faster than light bits of the Cosmos that are emitting light are falling off of our view horizon.
Gassing Station | Science! | Top of Page | What's New | My Stuff