According to leading astronomers the probe Philae that landed on the comet 67P last November may have discovered microbial life....
Sadly neither the probe nor the orbiter Rosetta are equipped to test directly but the evidence is interesting.
“These are not easily explained in terms of prebiotic chemistry. The dark material is being constantly replenished as it is boiled off by heat from the sun. Something must be doing that at a fairly prolific rate.” - Prof Chandra Wickramasinghe
I think it is only a matter of time before extraterrestrial life is positively confirmed. I wonder if it will pose any challenge to theists?