I can really only thing of a few scenarios where faith is a basis in science, that's when there are 2+ theories that are equally valid with the current evidence available.
Scientist A could think String theory is a better theory than loop quantum gravity, scientist B could think otherwise. Both could hold the belief theirs is right due to the evidence available, but until we get the tools needed to verify one as more valid than the other it's a bit of a deadlock.
Scientist A could think String theory is a better theory than loop quantum gravity, scientist B could think otherwise. Both could hold the belief theirs is right due to the evidence available, but until we get the tools needed to verify one as more valid than the other it's a bit of a deadlock.