The next time you become irritated by an event such as a tireless, relentless barking of a neighbour’s dog or a human behaviourism, consider remembering that there are 350 billion large galaxies in the observable Universe. What’s your problem?  The Quantum Universe: Everything that can Happen does Happen, Brian Cox and Jeff Forshaw



“The best estimate of the age of the universe as of 2013 is 13.798 ± 0.037 billion years but due to the expansion of space humans are observing objects that were originally much closer but are now considerably farther away (as defined in terms of cosmological proper distance, which is equal to the comoving distance at the present time) than a static 13.8 billion light-years distance.The diameter of the observable universe is estimated at about 28 billion parsecs (93 billion light-years), putting the edge of the observable universe at about 46–47 billion light-years away.”