I think it's extremely possible that there is life elsewhere, but it might not be life as we recognise it. Mankind seems always to make the arrogant assumption that "intelligent" life must mirror our own species, ie oxygen breathing bipeds that communicate just as we do. Why? Just as fish can breathe in water, there must be other methods of sustaining life that the way we know. And it is highly likely that other intelligent species wouldn't be able to speak as we do. Ming the Merciless may not want to talk to us, anyway.