Think about the Hubble "Deep Field" images for a few hours/days/years and you will change your mind.

Probes have just left own solar system, and we only have glimpes of other far away galaxies. We are in absolutely no positon to make claims about life beyond our planet - think BIG. :-)

Regards, Vince

"Representing a narrow "keyhole" view stretching to the visible horizon of the universe, the Hubble Deep Field image covers a speck of the sky only about the width of a dime 75 feet away. Though the field is a very small sample of the heavens, it is considered representative of the typical distribution of galaxies in space, because the universe, statistically, looks largely the same in all directions. Gazing into this small field, Hubble uncovered a bewildering assortment of at least 1,500galaxies at various stages of evolution."