[DouglasKC]

Maybe not life "as we know it" in your basement or somewhere. But stuff has been growing on the outside of the ISS - why not in liquid water (from compression warming) deep inside a tectonic crack on Pluto?

Because there thousands of other factors that have to be satisfied that just aren't there. If stuff is growing on the ISS it's only because it came from earth. Any kind of life is incredibly complex and requires specific processes to survive...let alone come into being.

[steve86]

You don’t have adequate information on “other factors” and “specific processes” to make an intelligent case about them. We only now have orbital photos of Pluto and know next to nothing about the biochemistry and electrical potentials on the surface, much less deep within a geological fissure. Entirely new processes that support life might be found there as on other objects in the solar system.

Besides, a strong argument can be made that microbial life can be spread throughout a solar system from the place it originally evolved via asteroid impacts and debris.