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originally posted by: Deaf Alien
Kepler has discovered thousands of habitable planets so I'd imagine a civilization more advanced would have discovered more and have the ability to detect life on other planets.
how do they know we are here? I can't imagine for one minute that E.T. would just set off from home and hope they would find life elsewhere.
Because of the distances they would be looking into the past.
There is no guarantee that life would still exist on any planet they may have observed.
And like someone else here alluded to, the "vast distances of oceanic travel" didn't seem to keep our species from inhabiting the entire earth