To All: It is now scientifically accepted that the universe is expanding at an ever increasing speed. Eventually, the rate of expansion will reach the speed of light and exceed it. According to Professor Susskind, a physicist from Stanford, the energy output of the stars or galaxies at that point becomes frozen in time.
However, it is possible that the Einstein's special theory of relativity could take effect. That is, as objects exceed the speed of light, time reverses in its progress. So, that means the stars or galaxies (or for that matter, any living beings that may still be existing at that time) will get younger and younger. In the end, all of matter will return into its original state close to the Big Bang. In other words, the universe will get hotter and hotter as it reaches the point of origin. As Susskind theorized, it is possible that the temperature will turn matter into plasma and would get hotter as the negative pressure of the expanding universe increases. Eventually, this intense heat will contribute to the explosion of another Big Bang which create matter to form a new universe. JR