Do you agree or disagree with the following statement?
	"Life exists beyond Earth."
Please review the arguments for and against the statement and enter your response.
		Pros As noted by Carl Sagan in an October, 1994 article in Scientific American, "We have every reason to believe that there are many water-rich worlds something like our own, each provided with a generous complement of complex organic molecules. Those planets that circle sun-like stars could offer environments in which life would have billions of years to arise and evolve. Should not there be an immense number and diversity of inhabited worlds in the Milky Way?" Recent exploration of Mars indicates that it once contained water, which is an essential ingredient for life. The composition of the Martian meteorite found in Antarctica, ALH84001, may indicate the presence of life. It is much more plausible to think that life exists in numerous locations, rather than at one single site in the entire vast universe. Life is out there; we just haven't found it yet.
		Cons In spite of all the research efforts by NASA, SETI, and others, there is no concrete evidence for the existence of life beyond Earth. If it were to exist, the most reasonable explanation for its development would be that life evolved in multiple locations within the universe, simultaneously. If life evolved as it did on Earth, why have we not found it? Why have we not been contacted by other civilizations? Certainly, they would be looking for us, just as we continue to search for them. The reason we have not found any evidence of life beyond Earth is simple; there is no life to be found.
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