Faith; Belief without need of certain proof.<quoted text>
The problem here is that you don't understand that faith is believe where evidence CAN NOT be obtained. EVER.
People have faith in "God" because there NEVER will be evidence of "God". If there could be evidence of "God", then there would be no faith.
There CAN, however, be evidence of life elsewhere in the Universe. The discovery of CONCLUSIVE evidence would not utterly destroy the entire concept of science.
However, the discovery of CONCLUSIVE evidence in a "God" would absolutely DESTROY the entire concept of religion.
Your friend is practicing "faith" in a belief, a speculation. That sounds very similar to faith in something else currently having the consistency of sub-quantum limn, hmmm?