Did the Universe Have a Beginning?

Many people believe that the universe had a beginning.  If they believe, they also believe that the universe has an end .  They think logically and believe in either/or relations.  People who think this expect to go to Heaven after death.

Albert Einstein says that the universe had a beginning.  So, he said that time was zero (time = 0). Then, when the universe ends, it has worn out and all high energies have been reduced to  heat energy, which is called a heat death.

The problem with the thinking above is that heavens are found only in the universe.  And, if God exists, he has no heaven.