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^Totally agree to SirFrog. There once was an article about other life-forms saying that life could be based on anything with attributes close to the stuff our life is based on. For example arsenic (not sure what it was supposed to replace, though.)
I do believe however that aliens will have similar senses. Not necessarily smelling and probably some we don't have, but light or sounds are likely.
Btw: This kinda reminds me of this thread:
http://www.lf-empire.de/forum/showthread.php?tid=1828
Basically you can find every argument about aliens in there as well.
About the big bang: Problem is that basically everything what might have been there before it has been destroyed, so we can't say much about it. For instance, there is the theory of the big bounce. As you may or may not know, the speed our universe expands with is decreasing (at least so it's said, I haven't measured it myself). Because of this some scientists believe that it will somewhen stop expanding and become smaller again until it's incredibly small again and it goes round and round...
I do believe however that aliens will have similar senses. Not necessarily smelling and probably some we don't have, but light or sounds are likely.
Btw: This kinda reminds me of this thread:
http://www.lf-empire.de/forum/showthread.php?tid=1828
Basically you can find every argument about aliens in there as well.
About the big bang: Problem is that basically everything what might have been there before it has been destroyed, so we can't say much about it. For instance, there is the theory of the big bounce. As you may or may not know, the speed our universe expands with is decreasing (at least so it's said, I haven't measured it myself). Because of this some scientists believe that it will somewhen stop expanding and become smaller again until it's incredibly small again and it goes round and round...