are we alone in this universe??//
8 Dec 06
In strictly physical terms, the total universe is the sum of all matter that exists and the space in which all events occur or could occur. The part of the universe that can be seen or otherwise observed to have occurred is called the known universe, observable universe, or visible universe. Because cosmic inflation removes vast parts of the total universe from our observable horizon, most cosmologists accept that it is impossible to observe the whole continuum and may use the expression our universe, referring to only that which is knowable by human beings in particular. In cosmological terms, the universe is thought to be a finite or infinite space-time continuum in which all matter and energy exist. Some scientists hypothesize that the universe may be part of a system of many other universes, known as the multiverse.
8 Dec 06
I really dont think so ... i mean it is really absurd of anyone to think that earth is the only planet in this whole universe that breeds life. imagine how many solar systems in the milky way and how many more milky ways in this universe. Do you really think we are alone ... Think Again