One scientific objection to religion is that the discovery of extraterrestrial life would show that our religions are not veridical, with Christianity being the most common target. I will first look at a parallel issue, the ancient and medieval controversy over antipodes. This raises two problematic Christian doctrines that would apply equally to extraterrestrials: the transmission of original sin and the cosmic fall. These issues raise questions about their spiritual status, but I conclude that not having such answers does not amount to an objection to Christianity’s credibility.