Here are three totally unrelated things that piss me off.
At least know someone well enough to form a knowledgeable opinion before you bury your nose in their ass.
"Incapable of supporting life."
Life can exist in the most unlikely of places. You people are scientists, you're supposed to know this. Read some books by Robert L. Forward if you need a refresher for your imagination, and then stop saying stupid things.
Like the one I had in the title of this entry for over six hours.