naw.
sure, there are other galaxies, but think about it scientifically..(although im religious...)
the earth is just the PERFECT distance from the sun for life to be sustained
not many planets are the earths distance, and of those that ARE at the right spot, they probably dont have and enclosed atmosphere with the right compounds, and if they DID have all that, they would need the elements of life in one certain spot at one time, and lightning would have to hit it perfectly.
for those that are religious, i think we are the only earth...