Of course you do, however there are theory's - only theory's that we may be related to outer life, if there was any. However your little sister or brother may be an alien LOL!
1) Why we're here is answered differently by different people. So any answer I give will be biased and not agreed upon by the majority. 2) The universe is the sum of everything around us that has: a)...
Absolutely not.
Even the faithers will agree with me there, as they are frequently fond of quoting the 2nd law of thermodynamics, which states that everything must ultimately decay.
In other words,...
3, or perhaps more. It depends on the theory to which you ascribe. For example, recent research done at the Princeton Institute for Advanced Studies (IAS) led to the creation of ekpyrotic theory....