i have a paradox in my mind and i want to solove it we know that the univers have 13.7 billion light years old and hwo can stuff be more than 14 billion light years old .. i guesse that i have the solution and i want from all of you to help me and tnx

Question

anonymous · Answer

First of all light year is a unit of distance and not time--as your question seems to suggest
Second of all, what makes you think that we have seen something that is 14 billion light years away?

anonymous · Answer

Light year indicates Distance. Many different lines of observation indicate that the answer is 13.7 billion years. NOT LIGHT YEARS PLEASE!!! The universe seems to be  expanding.  Galaxies far away appear to be receding from our own galaxy, the Milky Way, at a velocity of V = HD where D is the distance to the far galaxy. Astronomical measurements give H = 72 km/sec/megaparsec plus or minus a couple of percent.   Basically the age is given by the inverse of H.   There are corrections due to general relativity but the answer is close to other estimates of the age of the universe.