If the matter in the entire space is finite, then our universe
will merge or swallow all the outside matter including its sisters, mother, aunts, grandmothers, and so on, and finally stop its growing.
They don't take up room in our universe
but rather are their own universes, expanding into spaces that did not exist before.
The combination of the results of the two galaxy studies and their correlation with the supernova and microwave background observations "is a clear indication that we are on the right track to understanding the origin and evolution of our universe
," says Verde.
In this theory, our universe
emerged from a black hole in a previous universe; moreover, each black hole in our universe
(and other universes) generates yet another universe.
For an eternity, our universe
lay dormant --a frozen, featureless netherworld.
Yet somewhere in our universe
, the year 2000 may have just receded into the future, new research suggests.
However, the possible existence of closed timelike curves under certain extreme conditions may offer a solution to the problem of what came before the Big Bang, which most cosmologists believe started our universe