Panspermia

I haven't posted a vocabulary word in awhile... This from Webster's New World Dictionary.

Panspermia n. a theory holding that the seeds of life diffuse naturally through outer space.



I'm not quite sure how to use it in a sentence. Perhaps something like the following would work:

"I don't know where Dick Cheney came from. But maybe the theory of "panspermia" is true and he flew in on some asteroid from some far off galaxy where the people suck."