Galaxy has 'billions of Earths'
Posted 16 August 2012 - 10:12 AM
Posted 16 August 2012 - 10:31 AM
Posted 16 August 2012 - 12:22 PM
If, for example, we have been around for 0.00000000000001% of the life of the universe.
If there were another species on another planet that had been in existance for 0.00000000000002% of the time since the universe sprang into being they would be much more advanced than we are now.